Journal name: Journal of hazardous materials / Subject term: irradiation

1. 1D/2D constructed Bi2S3/Bi2O2CO3 direct Z-Scheme heterojunction: A versatile photocatalytic material for boosted photodegradation, photoreduction and photoelectrochemical detection of water-based contaminants

Author:: Sangeeta Adhikari; Sandip Mandal; Do-Heyoung Kim
Source:: Journal of hazardous materials 2021 v.418 pp. 126263
ISSN:: 0304-3894
Subject:: absorption; aqueous solutions; catalysts; chromium; electric field; irradiation; light; oxidation; photocatalysis; photolysis; photoreduction; tetracycline; thiourea
Abstract:: ... In this work, two-dimensional Bi₂O₂CO₃ disk is synthesized, followed by the growth of Bi₂S₃ over Bi₂O₂CO₃ via topotactic transformation by controlling the amount of thiourea under hydrothermal conditions. The synthesized composite catalyst is investigated for photocatalytic oxidation and reduction of tetracycline hydrochloride and hexavalent chromium under visible light irradiation. High interfaci ...
DOI:: 10.1016/j.jhazmat.2021.126263
: https://doi.org/10.1016/j.jhazmat.2021.126263

2. 3D printed photoreactor with immobilized graphitic carbon nitride: A sustainable platform for solar water purification

Author:: Qinmin Zheng; Ashlee Aiello; Yoon Sil Choi; Kayla Tarr; Hongchen Shen; David P. Durkin; Danmeng Shuai
Source:: Journal of hazardous materials 2020 v.399 pp. 123097
ISSN:: 0304-3894
Subject:: carbon nitride; chitosan; drinking water; graphene; hydrogels; irradiation; lighting; phenol; photocatalysis; photocatalysts; pollutants; slurries; solar collectors; solar radiation; sulfamethoxazole; three-dimensional printing; wastewater treatment; water purification
Abstract:: ... Solar-energy-enabled photocatalysis is promising for sustainable water purification. However, photoreactor design, especially immobilizing nano-sized photocatalysts, remains a major barrier preventing industrial-scale application of photocatalysis. In this study, we immobilized photocatalytic graphitic carbon nitride on chitosan to produce g-C₃N₄/chitosan hydrogel beads (GCHBs), and evaluated GCHB ...
DOI:: 10.1016/j.jhazmat.2020.123097
: https://doi.org/10.1016/j.jhazmat.2020.123097

3. A bamboo-inspired hierarchical nanoarchitecture of Ag/CuO/TiO2 nanotube array for highly photocatalytic degradation of 2,4-dinitrophenol

Author:: Xuhong Zhang; Longlu Wang; Chengbin Liu; Yangbin Ding; Shuqu Zhang; Yunxiong Zeng; Yutang Liu; Shenglian Luo
Source:: Journal of hazardous materials 2016 v.313 pp. 244-252
ISSN:: 0304-3894
Subject:: 2,4-dinitrophenol; absorption; active sites; cupric oxide; irradiation; lighting; nanosheets; nanosilver; nanotubes; nitrophenols; photocatalysis; photocatalysts; photosynthesis; pollutants; silver; titanium dioxide
Abstract:: ... The optimized geometrical configuration of muitiple active materials into hierarchical nanoarchitecture is essential for the creation of photocatalytic degradation system that can mimic natural photosynthesis. A bamboo-like architecture, CuO nanosheets and Ag nanoparticles co-decorated TiO2 nanotube arrays (Ag/CuO/TiO2), was fabricated by using simple solution-immersion and electrodeposition proce ...
DOI:: 10.1016/j.jhazmat.2016.03.094
: https://doi.org/10.1016/j.jhazmat.2016.03.094

4. A bioinspired cercosporin/polymethylmethacrylate photocatalyst with high efficiency for decontamination of pharmaceuticals and pathogens

Author:: Yawen Wu; Liushen Lu; Yan Zhang; Zhenbo Yuan; Lifeng Yang; Lijun Wang; Yijian Rao
Source:: Journal of hazardous materials 2021 v.419 pp. 126555
ISSN:: 0304-3894
Subject:: Staphylococcus aureus; antibacterial properties; chloroquine; decontamination; fluorescent lamps; fluoroquinolones; irradiation; pathogens; phosphates; photocatalysts; photolysis; photosensitivity; polymethylmethacrylate; porous media; reactive oxygen species; remediation; solar radiation; trimethoprim
Abstract:: ... Pharmaceuticals have seriously contaminated aquatic environments and resulted in the formation of drug-tolerant bacteria owing to continuous release and accumulation. Therefore, the development of new methods to simultaneously decompose drugs and disinfect pathogens in an environmental-friendly manner with high efficiency is still in great demand. Bioinspired by the great photosensitivity of natur ...
DOI:: 10.1016/j.jhazmat.2021.126555
: https://doi.org/10.1016/j.jhazmat.2021.126555

5. A comparative study of disinfection efficiency and regrowth control of microorganism in secondary wastewater effluent using UV, ozone, and ionizing irradiation process

Author:: O-Mi Lee; Hyun Young Kim; Wooshin Park; Tae-Hun Kim; Seungho Yu
Source:: Journal of hazardous materials 2015 v.295 pp. 201-208
ISSN:: 0304-3894
Subject:: chlorine; disinfection; economic feasibility; electric power; energy use and consumption; ionization; ionizing radiation; irradiation; microorganisms; ozone; regrowth; seasonal variation; temperature; turbidity; ultraviolet radiation; wastewater
Abstract:: ... Ionizing radiation technology was suggested as an alternative method to disinfection processes, such as chlorine, UV, and ozone. Although many studies have demonstrated the effectiveness of irradiation technology for microbial disinfection, there has been a lack of information on comparison studies of disinfection techniques and a regrowth of each treatment. In the present study, an ionizing radia ...
DOI:: 10.1016/j.jhazmat.2015.04.016
: https://doi.org/10.1016/j.jhazmat.2015.04.016

6. A comprehensive study on photocatalytic activity of supported Ni/Pb sulfide and oxide systems onto natural zeolite nanoparticles

Author:: Majid Babaahamdi-Milani; Alireza Nezamzadeh-Ejhieh
Source:: Journal of hazardous materials 2016 v.318 pp. 291-301
ISSN:: 0304-3894
Subject:: Fourier transform infrared spectroscopy; X-ray diffraction; aqueous solutions; electrons; irradiation; lead; nanoparticles; nickel; oxides; p-nitrophenol; pH; photocatalysis; photocatalysts; photolysis; semiconductors; sulfides; transmission electron microscopy; zeolites
Abstract:: ... The Ni(II)-Pb(II) exchanged clinoptilolite nanoparticles (NCP) were transformed to corresponding oxides and sulfides via calcination and sulfiding processes, respectively. The obtained catalysts were characterized by XRD, FT-IR, TEM and DRS and used in photodegradation of p-nitrophenol (4-NP) aqueous solution under Hg-lamp irradiation. Results showed considerable increase in activity of the couple ...
DOI:: 10.1016/j.jhazmat.2016.07.012
: https://doi.org/10.1016/j.jhazmat.2016.07.012

7. A heteropoly blue as environmental friendly material: An excellent heterogeneous Fenton-like catalyst and flocculent

Author:: Bao-Li Fei; Ni-Ping Deng; Jiang-Hong Wang; Qing-Bo Liu; Jian-Ying Long; Yang-Guang Li; Xiang Mei
Source:: Journal of hazardous materials 2017 v.340 pp. 326-335
ISSN:: 0304-3894
Subject:: catalysts; flocculation; irradiation; methyl orange; methylene blue; phenol; rhodamines
Abstract:: ... The first 3D heteropoly blue Ba2Na4[SiW4ⱽW8ⱽᴵO40]·19H2O (1) as heterogeneous Fenton-like catalyst and flocculent was hydrothermally synthesized and fully characterized by various methods 1 was an efficient Fenton-like catalyst for degradation of phenol with degradation rate of 92.1% (visible light irradiation), and 89.0% (no light) in 90min, respectively. The degradation efficiency of anionic dye ...
DOI:: 10.1016/j.jhazmat.2017.07.023
: https://doi.org/10.1016/j.jhazmat.2017.07.023

8. A mechanistic study on the potential of quinolinium salts as photocatalysts for the abatement of chlorinated pollutants

Author:: Rebeca Martinez-Haya; Consuelo Sabater; Maria-Ángeles Castillo; Miguel A. Miranda; M. Luisa Marin
Source:: Journal of hazardous materials 2018 v.351 pp. 277-284
ISSN:: 0304-3894
Subject:: 2,4,6-trichlorophenol; Daphnia magna; aerobic conditions; barium carbonate; bioassays; carbon dioxide; electron transfer; emissions factor; fluorescence; irradiation; mineralization; photocatalysis; photocatalysts; photolysis; pollutants; pollution control; singlet oxygen; triclosan
Abstract:: ... Photocatalytic degradation of three highly chlorinated contaminants, namely 2,4,6-trichlorophenol (TCP), 2,4,6-trichloroanisole (TCA) and 5-chloro-2-(2,4-dichlorophenoxy)phenol (triclosan, TCS) has been investigated in the presence of N-methylquinolinium tetrafluoroborate (NMQ+), a photocatalyst able to act via Type I or Type II mechanism. Photodegradation of contaminants under aerobic conditions ...
DOI:: 10.1016/j.jhazmat.2018.03.010
: https://doi.org/10.1016/j.jhazmat.2018.03.010

9. A new mathematical model for irradiance field prediction of upper-room ultraviolet germicidal systems

Author:: C.L. Wu; Y. Yang; S.L. Wong; A.C.K. Lai
Source:: Journal of hazardous materials 2011 v.189 no.1-2 pp. 173-185
ISSN:: 0304-3894
Subject:: airborne microorganisms; disinfection; irradiation; light intensity; mathematical models; prediction; ultraviolet radiation
Abstract:: ... There has been an increasing interest in the use of upper-room ultraviolet germicidal irradiation (UVGI) system because of its proven disinfection effect for airborne microorganisms. To better design and explore further potential applications of UVGI systems, it is of critical importance to predict the spatial UV intensity in enclosures. In this paper, we developed a new mathematical model to pred ...
DOI:: 10.1016/j.jhazmat.2011.02.022
: https://doi.org/10.1016/j.jhazmat.2011.02.022

10. A novel Au-SnO2-rGO ternary nanoheterojunction catalyst for UV-LED induced photocatalytic degradation of clothianidin: Identification of reactive intermediates, degradation pathway and in-depth mechanistic insight

Author:: Dipyaman Mohanta; Md. Ahmaruzzaman
Source:: Journal of hazardous materials 2020 v.397 pp. 122685
ISSN:: 0304-3894
Subject:: clothianidin; electron paramagnetic resonance spectroscopy; graphene oxide; high performance liquid chromatography; instrumentation; ions; irradiation; luminescence; mass spectrometry; nanocomposites; nanogold; nanoparticles; pH; photocatalysis; photocatalysts; tin dioxide
Abstract:: ... Herein, we have developed Au-SnO₂-rGO ternary nanoheterojunction catalyst for photocatalytic degradation of clothianidin under UV-LED irradiation. Au nanoparticles (Au NPs) were decorated with quantum sized SnO₂ nanoparticles (SnO₂ NPs) and embedded in the reduced graphene oxide (rGO) matrix. The synthesized photocatalyst was characterized using common instrumentation techniques to evaluate the mo ...
DOI:: 10.1016/j.jhazmat.2020.122685
: https://doi.org/10.1016/j.jhazmat.2020.122685

11. A novel L-Histidine (C, N) codoped-TiO2-CdS nanocomposite for efficient visible photo-degradation of recalcitrant compounds from wastewater

Author:: Hadis Zangeneh; Ali Akbar Zinatizadeh; Sirus Zinadini; Mostafa Feyzi; Ezzat Rafiee; Detlef W. Bahnemann
Source:: Journal of hazardous materials 2019 v.369 pp. 384-397
ISSN:: 0304-3894
Subject:: Fourier transform infrared spectroscopy; X-ray diffraction; chemical oxygen demand; histidine; irradiation; methyl orange; nanocomposites; nanoparticles; oil mill effluents; optical properties; pH; photocatalysts; photoluminescence; photolysis; reflectance spectroscopy; response surface methodology; scanning electron microscopy; titanium dioxide; wastewater
Abstract:: ... The aim of current study is to synthesis novel visible driven photocatalysts (L-Histidine (C, N) codoped-TiO2-CdS) with different loadings of L-Hisitdine (1, 2, and 3 wt.%) and CdS (1:9, 7:1, and 1:5 mass ratios of CdS to TiO2). Then, their application for photo-degradation of methyl orange (MO) and biologically treated palm oil mill effluent (POME) were studied. The structure, optical properties, ...
DOI:: 10.1016/j.jhazmat.2019.02.049
: https://doi.org/10.1016/j.jhazmat.2019.02.049

12. A novel Sm doped Cr2O3 sesquioxide-decorated MWCNTs heterostructured Fenton-like with sonophotocatalytic activities under visible light irradiation

Author:: Gh. Eshaq; Amer M; Moonis Ali Khan; Zeid A. Alothman; Mika Sillanpää
Source:: Journal of hazardous materials 2022 v.426 pp. 127812
ISSN:: 0304-3894
Subject:: absorbance; dissociation; durability; electron paramagnetic resonance spectroscopy; hot water treatment; irradiation; light; mineralization; nanocomposites; pH; photocatalysis; photocatalysts; reaction mechanisms; sonocatalysis; synergism; ultrasonic treatment
Abstract:: ... Novel Sm doped Cr₂O₃ decorated MWCNTs nanocomposite photocatalyst was successfully prepared by a facile hydrothermal method for metoprolol (MET) degradation. A heterogeneous photo -Fenton like system was formed with the addition of H₂O₂ for ultrasonic irradiation (US), visible light irradiation (Vis) and dual irradiation (US/Vis) systems. The intrinsic characteristics of Sm doped Cr₂O₃ decorated M ...
DOI:: 10.1016/j.jhazmat.2021.127812
: https://doi.org/10.1016/j.jhazmat.2021.127812

13. A novel and high-performance double Z-scheme photocatalyst ZnO-SnO2-Zn2SnO4 for effective removal of the biological toxicity of antibiotics

Author:: Shuying Dong; Lingfang Cui; Yujia Tian; Longji Xia; Yuhan Wu; Jianjia Yu; David M. Bagley; Jianhui Sun; Maohong Fan
Source:: Journal of hazardous materials 2020 v.399 pp. 123017
ISSN:: 0304-3894
Subject:: Escherichia coli; absorption; bisphenol A; ciprofloxacin; electron paramagnetic resonance spectroscopy; electron transfer; irradiation; light; oxidation; photocatalysis; photocatalysts; photostability; sulfamonomethoxine; toxicity
Abstract:: ... Visible light-responsive tetradecahedral ZnO-SnO₂-Zn₂SnO₄ photocatalysts possessing double Z-scheme mechanism were prepared via a hydrothermal pathway and subsequent annealing treatment. Due to its enhanced optical absorption ability and effective charge separation, the sample with a Zn/Sn atom ratio of 3:2 (Z32) exhibited superior degradation of the antibiotics ciprofloxacin and sulfamonomethoxin ...
DOI:: 10.1016/j.jhazmat.2020.123017
: https://doi.org/10.1016/j.jhazmat.2020.123017

14. A novel hollow-sphere cyclodextrin nanoreactor for the enhanced removal of bisphenol A under visible irradiation

Author:: Yi Zhou; Jian Lu; Qiming Liu; Huafeng Chen; Yongdi Liu; Yanbo Zhou
Source:: Journal of hazardous materials 2020 v.384 pp. 121267
ISSN:: 0304-3894
Subject:: active sites; bisphenol A; cadmium sulfide; catalysts; catalytic activity; cyclodextrins; electrons; endocrine-disrupting chemicals; irradiation; manganese oxides; nanogold; nanoparticles; phenol; photolysis; photooxidation; toxic substances
Abstract:: ... A novel hybrid nanoreactor with spatially separated co-catalysts (SH-CD-Au@CdS@MnOₓ) was successfully synthesised to remove bisphenol-A (BPA) from water by visible light. The photooxidation intermediates, degradation pathway of BPA and the enhancement mechanism were investigated in particular. Gold (Au) nanoparticles modified with SH-β-cyclodextrin and MnOₓ nanoparticles were selectively decorated ...
DOI:: 10.1016/j.jhazmat.2019.121267
: https://doi.org/10.1016/j.jhazmat.2019.121267

15. A novel immobilized Z-scheme P3HT/α-Fe2O3 photocatalyst array: Study on the excellent photocatalytic performance and photocatalytic mechanism

Author:: Hongjie Zhu; Zhihao Chen; Youyou Hu; Lingxuan Gong; Dandan Li; Zhengkui Li
Source:: Journal of hazardous materials 2020 v.389 pp. 122119
ISSN:: 0304-3894
Subject:: X-ray photoelectron spectroscopy; bisphenol A; electron paramagnetic resonance spectroscopy; electrophoresis; energy conversion; hematite; irradiation; light; lighting; photocatalysis; photocatalysts; pollutants; tetracycline; water pollution; water purification; water quality
Abstract:: ... The Z-scheme photocatalyst is valuable for use in polluted water purification. To improve the practical application value of the Z-scheme, in this study, a nano α-Fe₂O₃ and P3HT composite photocatalyst array was synthesized by electrophoretic deposition for the first time. This material was named F1P. The EPR, VBXPS and in situ illumination XPS analyses indicated that the charge transfer path of F ...
DOI:: 10.1016/j.jhazmat.2020.122119
: https://doi.org/10.1016/j.jhazmat.2020.122119

16. A novel magnetic MIL-101(Fe)/TiO2 composite for photo degradation of tetracycline under solar light

Author:: Lei He; Yanan Dong; Yane Zheng; Qingming Jia; Shaoyun Shan; Yaqin Zhang
Source:: Journal of hazardous materials 2019 v.361 pp. 85-94
ISSN:: 0304-3894
Subject:: Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; coordination polymers; energy-dispersive X-ray analysis; free radicals; hydroxyl radicals; iron; irradiation; magnetic materials; magnetism; pH; photolysis; scanning electron microscopy; solar radiation; superoxide anion; tetracycline; thermogravimetry; titanium dioxide; transmission electron microscopy; ultraviolet radiation; wastewater
Abstract:: ... A novel magnetic MIL-101(Fe)/TiO2 composite was synthesized for photo degradation of tetracycline (TC) under solar light. The composite was characterized by XRD, TGA, SEM, TEM, EDS, BET, FTIR, XPS, VSM, ESR, and PL. The resultant composite was environment friendly material, which exhibited high TC degradation efficiency and excellent reusability. In the meantime, it could be separated easily from ...
DOI:: 10.1016/j.jhazmat.2018.08.079
: https://doi.org/10.1016/j.jhazmat.2018.08.079

17. A novel method for photo-oxidative degradation of diatrizoate in water via electromagnetic induction electrodeless lamp

Author:: Lingjun Meng; Shaogui Yang; Cheng Sun; Huan He; Qiming Xian; Shiyin Li; Guoxiang Wang; Limin Zhang; Dong Jiang
Source:: Journal of hazardous materials 2017 v.337 pp. 34-46
ISSN:: 0304-3894
Subject:: X-radiation; aquatic environment; cyclization reactions; deamination; decarboxylation; drugs; electric energy consumption; hydrogen peroxide; inorganic ions; irradiation; lamps; mercury; oxidants; oxidation; oxygen; photolysis; screening
Abstract:: ... In this study, an electromagnetic induction electrodeless lamp (EIEL) was first introduced into UV advanced oxidation processes (AOPs) for photodegradation of Diatrizoate (DTZ), which was the most persistent iodinated X-ray contrast medium (ICM), and traditional Hg lamps were taken as references. Direct photolysis rate of DTZ under EIEL irradiation was 1.34 times as that under Hg irradiation, but ...
DOI:: 10.1016/j.jhazmat.2017.05.005
: https://doi.org/10.1016/j.jhazmat.2017.05.005

18. A novel route to graphite-like carbon supporting SnO2 with high electron transfer and photocatalytic activity

Author:: Xianjie Chen; Fenglin Liu; Bing Liu; Lihong Tian; Wei Hu; Qinghua Xia
Source:: Journal of hazardous materials 2015 v.287 pp. 126-132
ISSN:: 0304-3894
Subject:: X-radiation; carbon; crystallization; electron transfer; glyphosate; irradiation; nanocomposites; nanoparticles; nitrogen; photocatalysis; polyvinylpyrrolidone; porous media; scanning electron microscopy; solar radiation; transmission electron microscopy
Abstract:: ... Mesoporous graphite-like carbon supporting SnO2 (carbon–SnO2) nanocomposites were prepared by a modified solvothermal method combined with a post-calcination at 500°C under a nitrogen atmosphere. The polyvinylpyrrolidone not only promotes the nucleation and crystallization, but also provides the carbon source in the process. The results of scanning electron microscopy and transmission electron mic ...
DOI:: 10.1016/j.jhazmat.2015.01.037
: https://doi.org/10.1016/j.jhazmat.2015.01.037

19. A novel synthesis of oleophylic Fe2O3/polystyrene fibers by γ-Ray irradiation for the enhanced photocatalysis of 4-chlorophenol and 4-nitrophenol degradation

Author:: Ji-Chao Wang; Ying Li; Heng Li; Zeng-Hui Cui; Yuxia Hou; Weina Shi; Kai Jiang; Lingbo Qu; Yu-Ping Zhang
Source:: Journal of hazardous materials 2019 v.379 pp. 120806
ISSN:: 0304-3894
Subject:: 4-chlorophenol; adsorption; catalysts; ferric oxide; gamma radiation; hydrophobicity; hydroxyl radicals; irradiation; moieties; nanoparticles; p-nitrophenol; phenol; photocatalysis; pollutants; synergism; wastewater treatment
Abstract:: ... Photocatalytic degradation by efficient and easy recyclable semiconductor-catalysts is an ideal way to solve the environmental problem. A series of Fe2O3/Polystyrene (Fe2O3/PS) composite fibers with hydrophobic property were obtained by the electrospinning and γ-Ray irradiation methods. The γ-Ray irradiation treatment not only formed steady micro-nano construction of nanoparticles and fiber, but a ...
DOI:: 10.1016/j.jhazmat.2019.120806
: https://doi.org/10.1016/j.jhazmat.2019.120806

20. A novel tubular up-flow magnetic film photocatalytic system optimized by main factors control for efficient removal of chlorophenols wastewater

Author:: Yichen Zhen; Qiang Zhang; Xiaoyan Zhang; Guanteng Zhang; Xiaoxin Chen; Chunxia Zhao
Source:: Journal of hazardous materials 2020 v.398 pp. 122963
ISSN:: 0304-3894
Subject:: 2,4-dichlorophenol; environmental quality; irradiation; lanthanum; magnetism; oxidation; photocatalysis; photocatalysts; pollution; prediction; raw materials; surface water; wastewater
Abstract:: ... Chlorophenols (CPs) are still used as raw material or intermediate in some industries. Photocatalytic oxidation is free from secondary pollution, but the efficiency is restricted by some main factors. In this study, a novel high efficiency tubular up-flow magnetic film (TUMF) photocatalytic system was investigated based on the magnetic lanthanum doping core-shell Fe₃O₄@SiO₂@TiO₂ (La-FST) nanoparti ...
DOI:: 10.1016/j.jhazmat.2020.122963
: https://doi.org/10.1016/j.jhazmat.2020.122963

21. A novel upper-room UVC-LED irradiation system for disinfection of indoor bioaerosols under different operating and airflow conditions

Author:: Sunday S. Nunayon; Hui H. Zhang; Alvin C.K. Lai
Source:: Journal of hazardous materials 2020 v.396 pp. 122715
ISSN:: 0304-3894
Subject:: Escherichia coli; Staphylococcus epidermidis; air flow; bacteria; bioaerosols; disinfection; irradiation; light emitting diodes; ultraviolet radiation
Abstract:: ... The potential of inactivating indoor bacteria aerosols using a novel rotating ultraviolet-C (UV-C) light-emitting-diode (LED) system was investigated. The system was installed in the upper level of a full scale chamber and its effectiveness against aerosolized E. coli, S. marcescens, and S. epidermidis under the well-mixed with stationary UV-LED scenario was initially tested. The estimated suscept ...
DOI:: 10.1016/j.jhazmat.2020.122715
: https://doi.org/10.1016/j.jhazmat.2020.122715

22. A pilot study on the disinfection efficacy of localized UV on the flushing-generated spread of pathogens

Author:: A.C.K. Lai; S.S. Nunayon; T.F. Tan; W.S. Li
Source:: Journal of hazardous materials 2018 v.358 pp. 389-396
ISSN:: 0304-3894
Subject:: Escherichia coli; Salmonella Typhimurium; Staphylococcus epidermidis; aerosols; bacteria; disinfection; droplets; emissions; guidelines; humans; irradiation; ozone; pathogens; ultraviolet radiation
Abstract:: ... The process of toilet-flushing can generate flushing-associated water droplets which can potentially expose humans to pathogen-laden aerosols. Very little is known about such aerosol dissemination or the means for minimizing exposure to these aerosols. This study has evaluated the efficacy of ultraviolet waveband C (UV-C) for disinfection of flushing-generated pathogen-laden aerosols through tests ...
DOI:: 10.1016/j.jhazmat.2018.07.003
PubMed:: 30005250
PubMed Central:: PMC7116983
: https://doi.org/10.1016/j.jhazmat.2018.07.003

23. A review of advances in multifunctional XTiO3 perovskite-type oxides as piezo-photocatalysts for environmental remediation and energy production

Author:: Ridha Djellabi; Marcela Frias Ordonez; Francesco Conte; Ermelinda Falletta; Claudia L. Bianchi; Ilenia Rossetti
Source:: Journal of hazardous materials 2022 v.421 pp. 126792
ISSN:: 0304-3894
Subject:: crystallites; energy conversion; heat; irradiation; oxygen; photocatalysis; photocatalysts; remediation; ultrasonics; vibration
Abstract:: ... Over more than three decades, the field of engineering of photocatalytic materials with unique properties and enhanced performance has received a huge attention. In this regard, different classes of materials were fabricated and used for different photocatalytic applications. Among these materials, recently multifunctional XTiO₃ perovskites have drawn outstanding interest towards environmental rem ...
DOI:: 10.1016/j.jhazmat.2021.126792
: https://doi.org/10.1016/j.jhazmat.2021.126792

24. A simple method to prepare g-C3N4-TiO2/waste zeolites as visible-light-responsive photocatalytic coatings for degradation of indoor formaldehyde

Author:: Shou-Heng Liu; Wei-Xing Lin
Source:: Journal of hazardous materials 2019 v.368 pp. 468-476
ISSN:: 0304-3894
Subject:: adsorption; air; air quality; carbon nitride; coatings; electron paramagnetic resonance spectroscopy; electrons; formaldehyde; graphene; irradiation; photocatalysis; photocatalysts; pollutants; silicates; sol-gel processing; superoxide anion; titanium dioxide; wastes; zeolites
Abstract:: ... The indoor air quality should be highly addressed because people spend more time staying in indoor environments. Photocatalytic degradation of indoor pollutants (e.g., formaldehyde) is one of the most promising and environmental friendly technologies. In this work, a heterostructured photocatalyst combining graphitic carbon nitride (g-C3N4), TiO2 and waste zeolites (g-C3N4-TiO2/waste zeolites) is ...
DOI:: 10.1016/j.jhazmat.2019.01.082
: https://doi.org/10.1016/j.jhazmat.2019.01.082

25. A simple post-synthesis conversion approach to Zn(OH)F and the effects of fluorine and hydroxyl on the photodegradation properties of dye wastewater

Author:: Hao Yang; Fei Teng; Wenhao Gu; Zailun Liu; Yunxuan Zhao; An Zhang; Zhe Liu; Yiran Teng
Source:: Journal of hazardous materials 2017 v.333 pp. 250-258
ISSN:: 0304-3894
Subject:: energy; fluorine; hydroxyl radicals; irradiation; methylene blue; photocatalysis; photocatalysts; photolysis; ultraviolet radiation; wastewater; zinc; zinc oxide
Abstract:: ... In this work, Zn(OH)F is prepared by an initiative, simple post-synthesis method, in which the molar ratio of F/Zn (RF) was varied to investigate the effect of the NH4F amounts added on the samples. Further, we have mainly investigated their energy bands and photochemical properties. Under UV light irradiation (λ£420nm), the samples (RF=0,1,2) show the high degradation activities of methylene blue ...
DOI:: 10.1016/j.jhazmat.2017.03.039
: https://doi.org/10.1016/j.jhazmat.2017.03.039

26. A study on microwave oxidation of landfill leachate—Contributions of microwave-specific effects

Author:: Yu-Chieh Chou; Shang-Lien Lo; Jeff Kuo; Chih-Jung Yeh
Source:: Journal of hazardous materials 2013 v.246-247 pp. 79-86
ISSN:: 0304-3894
Subject:: free radicals; heat; irradiation; landfill leachates; landfills; microwave radiation; oxidants; oxidation; pH; temperature
Abstract:: ... Microwave oxidation process (MOP) was evaluated for treatment of landfill leachate. The experimental parameters include pH, temperature, oxidant doses, microwave power setting, and irradiation time. The study explored the microwave-specific effects of the MOP. The contributions of pure thermal, persulfate oxidation and microwave irradiation on TOC removal were quantified. It was then found the com ...
DOI:: 10.1016/j.jhazmat.2012.11.060
: https://doi.org/10.1016/j.jhazmat.2012.11.060

27. Abiotic and biotic degradation of five aromatic organosilicon compounds in aqueous media—Structure degradability relationships

Author:: Elisa Grabitz; Oliver Olsson; Ann-Kathrin Amsel; Britta Rummel; Norbert W. Mitzel; Klaus Kümmerer
Source:: Journal of hazardous materials 2020 v.392 pp. 122429
ISSN:: 0304-3894
Subject:: aromatic compounds; biodegradability; hydrolysis; irradiation; mercury; mineralization; organosilicon compounds; silicone; toxicity; wavelengths
Abstract:: ... Silicones have many applications and are produced in large quantities. Despite their potential toxicity, information on their environmental mineralisation is scarce. Therefore, we investigated a group of five organosilicon compounds (o-MeOC₆H₄SiMe₃ (1), p-MeOC₆H₄SiMe₃ (2), (p-MeOC₆H₄)₂SiMe₂ (3), o-Me₂NC₆H₄SiMe₃ (4) and p-Me₂NC₆H₄SiMe₃ (5)), recently developed to be ‘benign by design’ based on thei ...
DOI:: 10.1016/j.jhazmat.2020.122429
: https://doi.org/10.1016/j.jhazmat.2020.122429

28. Accelerated degradation of sulfamethazine in water by VUV/UV photo-Fenton process: Impact of sulfamethazine concentration on reaction mechanism

Author:: Dong Wen; Zhengdi Wu; Yubin Tang; Mengkai Li; Zhimin Qiang
Source:: Journal of hazardous materials 2018 v.344 pp. 1181-1187
ISSN:: 0304-3894
Subject:: mineralization; photolysis; hydrogen peroxide; iron; bicarbonates; chlorides; humic acids; pollutants; anions; pH; reaction mechanisms; oxidation; photons; sulfamethazine; irradiation; ultraviolet radiation; nitrates
Abstract:: ... The degradation of sulfamethazine (SMN) by VUV/UV photo-Fenton (VPF) process was investigated with a mini-fluidic VUV/UV photoreaction system. Compared with the conventional UV photo-Fenton process, the VPF process significantly enhanced the degradation and mineralization of SMN, because the VUV irradiation photolyzed H₂O and accelerated the redox cycle of Fe³⁺/Fe²⁺ to generate more reactive oxyge ...
DOI:: 10.1016/j.jhazmat.2017.10.032
: https://doi.org/10.1016/j.jhazmat.2017.10.032

29. Accelerated photoelectron transmission by carboxymethyl β-cyclodextrin for organic contaminants removal: An alternative to noble metal catalyst

Author:: Yi Zhou; Qiming Liu; Jian Lu; Jie He; Yongdi Liu; Yanbo Zhou
Source:: Journal of hazardous materials 2020 v.393 pp. 122414
ISSN:: 0304-3894
Subject:: beta-cyclodextrin; bisphenol A; catalysts; hydrophobicity; irradiation; nanogold; nanoparticles; phenol; photocatalysis; photooxidation; titanium dioxide; ultraviolet radiation
Abstract:: ... Applications of noble metal decorated photocatalytic nanomaterials are restricted by its high cost. In this study, carboxymethyl β-cyclodextrin (CM-β-CD), as an alternative to gold nanoparticle, was used to modified titanium dioxide (CM-β-CD-P25) to accelerate photoelectron transmission and enhance the organic contaminants removal from water. Several of emerging organic contaminants, such as bisph ...
DOI:: 10.1016/j.jhazmat.2020.122414
: https://doi.org/10.1016/j.jhazmat.2020.122414

30. Activation of peroxydisulfate via photothermal synergistic strategy for wastewater treatment: Efficiency and mechanism

Author:: Debing Wang; Yun Liu; Qiaoying Wang; Fengrui Yang; Jia Liu; Weijie Hu; Jie Zhang; Zhichao Wu
Source:: Journal of hazardous materials 2022 v.436 pp. 129224
ISSN:: 0304-3894
Subject:: aquatic environment; fulvic acids; irradiation; oxidation; solar energy; solar radiation; synergism; temperature; wastewater treatment
Abstract:: ... Peroxydisulfate (PDS)-based advanced oxidation processes (AOPs) have been demonstrated to be an effective technology for the removal of refractory organic contaminants from the aquatic environment. Herein, a photothermal synergistic strategy is developed to realize the green activation of PDS under solar light irradiation. An innovative solar photothermal reaction system and its corresponding eval ...
DOI:: 10.1016/j.jhazmat.2022.129224
: https://doi.org/10.1016/j.jhazmat.2022.129224

31. Activation of peroxymonosulfate by Fe doped g-C3N4 /graphene under visible light irradiation for Trimethoprim degradation

Author:: Ruobai Li; Jiashu Huang; Meixuan Cai; Jiaxing Huang; Zhijie Xie; Qianxin Zhang; Yang Liu; Haijin Liu; Wenying Lv; Guoguang Liu
Source:: Journal of hazardous materials 2020 v.384 pp. 121435
ISSN:: 0304-3894
Subject:: acute toxicity; carbon nitride; catalysts; electron paramagnetic resonance spectroscopy; free radicals; graphene oxide; hydroxylation; iron; irradiation; liquid chromatography; oxidation; pH; polymers; remediation; superoxide anion; tandem mass spectrometry; toxic substances; trimethoprim
Abstract:: ... Fe-doped g-C₃N₄ / graphene (rGO) composites were investigated as catalysts for the activation of peroxymonosulfate (PMS) to degrade Trimethoprim (TMP) under visible light irradiation. The rapid recombination of photogenerated electron-hole pairs in g-C₃N₄ may be suppressed by doping with Fe and incorporating rGO. The TMP degradation efficiency using 0.2% Fe-g-C₃N₄/2 wt% rGO/PMS was 3.8 times than ...
DOI:: 10.1016/j.jhazmat.2019.121435
: https://doi.org/10.1016/j.jhazmat.2019.121435

32. Activation of peroxymonosulfate by graphitic carbon nitride loaded on activated carbon for organic pollutants degradation

Author:: Mingyu Wei; Long Gao; Jun Li; Jia Fang; Wenxuan Cai; Xiaoxia Li; Aihua Xu
Source:: Journal of hazardous materials 2016 v.316 pp. 60-68
ISSN:: 0304-3894
Subject:: X-ray photoelectron spectroscopy; activated carbon; carbon nitride; catalysts; graphene; irradiation; oxidation; pH; pollutants; remediation; surface area; temperature
Abstract:: ... Graphitic carbon nitride supported on activated carbon (g-C3N4/AC) was prepared through an in situ thermal approach and used as a metal free catalyst for pollutants degradation in the presence of peroxymonosulfate (PMS) without light irradiation. It was found that g-C3N4 was highly dispersed on the surface of AC with the increase of surface area and the exposition of more edges and defects. The mu ...
DOI:: 10.1016/j.jhazmat.2016.05.031
: https://doi.org/10.1016/j.jhazmat.2016.05.031

33. Activation of persulfate by irradiated laterite for removal of fluoroquinolones in multi-component systems

Author:: Mahamadou Kamagate; Aymen Amin Assadi; Tiangoua Kone; Lacina Coulibaly; Khalil Hanna
Source:: Journal of hazardous materials 2018 v.346 pp. 159-166
ISSN:: 0304-3894
Subject:: antibiotics; ciprofloxacin; flumequine; irradiation; laterites; norfloxacin; oxidation; remediation; sorption; sulfates; ultraviolet radiation; wastewater; water pollution
Abstract:: ... Although several emerging contaminants (e.g. fluoro(quinolones) (FQs)) have been simultaneously detected in environmental systems, there is very limited information on their elimination from contaminated waters in multi-component systems. In this study, removal of three FQs including flumequine (FLU), ciprofloxacin (CIP) and norfloxacin (NOR) were investigated in single and mixture systems, using ...
DOI:: 10.1016/j.jhazmat.2017.12.011
: https://doi.org/10.1016/j.jhazmat.2017.12.011

34. Adsorption and enhanced photocatalytic activity of the {0001} faceted Sm-doped ZnIn2S4 microspheres

Author:: Congwei Tan; Gangqiang Zhu; Mirabbos Hojamberdiev; Koodlur Sannegowda Lokesh; Xiancong Luo; Lei Jin; Jianping Zhou; Peng Liu
Source:: Journal of hazardous materials 2014 v.278 pp. 572-583
ISSN:: 0304-3894
Subject:: X-ray diffraction; X-ray photoelectron spectroscopy; absorption; adsorption; electrons; energy; irradiation; methyl orange; photocatalysis; photolysis; samarium; scanning electron microscopy; transmission electron microscopy
Abstract:: ... In this study, the doping effect of samarium on the structure, morphology, adsorption and photocatalytic performance of hexagonal ZnIn2S4 microspheres was studied. The photocatalytic activity of Sm-doped ZnIn2S4 microspheres was evaluated for the photodegradation of Rhodamine B (RhB) and methyl orange (MO) under visible light irradiation. The samples were characterized by XRD, SEM, XPS, UV–vis, TE ...
DOI:: 10.1016/j.jhazmat.2014.06.019
: https://doi.org/10.1016/j.jhazmat.2014.06.019

35. Adsorption and photocatalytic and photosensitised bleaching of acid orange 7 on multilayer mesoporous films of TiO₂

Author:: Andrew Mills; Christopher O’Rourke; Vit Kalousek; Jiri Rathousky
Source:: Journal of hazardous materials 2012 v.211-212 no. pp. 182-187
ISSN:: 0304-3894
Subject:: adsorption; bleaching; irradiation; surface area; titanium dioxide
Abstract:: ... A series of mesoporous films of titania of different thicknesses are prepared and their surface areas and porosities determined by physical adsorption using Kr as the adsorbate. The amounts of acid orange 7 (AO7) adsorbed by these films are found to be proportional to their measured surface areas and so the possibility of using this as a method of determining the surface area of thin titania films ...
DOI:: 10.1016/j.jhazmat.2011.07.116
: https://doi.org/10.1016/j.jhazmat.2011.07.116

36. Adsorption and photocatalytic oxidation of formaldehyde on a clay-TiO₂ composite

Author:: Daria Kibanova; Mohamad Sleiman; Javiera Cervini-Silva; Hugo Destaillats
Source:: Journal of hazardous materials 2012 v.211-212 no. pp. 233-239
ISSN:: 0304-3894
Subject:: adsorption; air; catalysts; formaldehyde; irradiation; lamps; oxidation; relative humidity; surface area; titanium dioxide
Abstract:: ... We investigated the adsorption capacity and photocatalytic removal efficiency of formaldehyde using a hectorite-TiO₂ composite in a bench flow reactor. The same experimental conditions were applied to pure TiO₂ (Degussa P25) as a reference. The catalysts were irradiated with either a UVA lamp (365nm) or with one of two UVC lamps of 254nm and 254+185nm, respectively. Formaldehyde was introduced ups ...
DOI:: 10.1016/j.jhazmat.2011.12.008
: https://doi.org/10.1016/j.jhazmat.2011.12.008

37. Adsorption–photodegradation of humic acid in water by using ZnO coupled TiO2/bamboo charcoal under visible light irradiation

Author:: Xuejiang Wang; Zhen Wu; Yin Wang; Wei Wang; Xin Wang; Yunjie Bu; Jianfu Zhao
Source:: Journal of hazardous materials 2013 v.262 pp. 16-24
ISSN:: 0304-3894
Subject:: surface area; photocatalysis; reflectance spectroscopy; scanning electron microscopy; photocatalysts; humic acids; Fourier transform infrared spectroscopy; irradiation; microwave radiation; water pollution; micropores; titanium dioxide; models; pollutants; zinc oxide; sol-gel processing; adsorption; X-ray diffraction; nitrogen; absorption; water treatment; pH; charcoal
Abstract:: ... ZnO coupled TiO2/bamboo charcoal (ZnO-TiO2/BC) was prepared using the sol–gel method combined with microwave irradiation. The ZnO-TiO2/BC and TiO2/BC were characterized by means of X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), N2 adsorption (BET), and UV–vis diffuse reflectance spectroscopy (UV–vis-DRS). The ZnO dopant promoted the tra ...
DOI:: 10.1016/j.jhazmat.2013.08.037
: https://doi.org/10.1016/j.jhazmat.2013.08.037

38. Adsorptive removal and photocatalytic decomposition of cationic dyes on niobium oxide with deformed orthorhombic structure

Author:: Tarmizi Taher; Akihiro Yoshida; Aldes Lesbani; Irwan Kurnia; Guoqing Guan; Abuliti Abudula; Wataru Ueda
Source:: Journal of hazardous materials 2021 v.415 pp. 125635
ISSN:: 0304-3894
Subject:: adsorbents; adsorption; cation exchange; irradiation; methylene blue; niobium; photocatalysis; ultraviolet radiation; wastewater; wastewater treatment
Abstract:: ... Nano-rod-shaped niobium oxide with a deformed orthorhombic structure (ortho-Nb₂O₅) is first demonstrated as a selective adsorbent to remove cationic dyes wastewater. Ortho-Nb₂O₅ quickly adsorbs methylene blue (MB) with much greater capacity than reported inorganic adsorbents. Furthermore, ortho-Nb₂O₅ has a stronger affinity to cationic dye than anionic dye because cation exchange is involved in th ...
DOI:: 10.1016/j.jhazmat.2021.125635
: https://doi.org/10.1016/j.jhazmat.2021.125635

39. Adsorptive separation and photocatalytic degradation of methylene blue dye on titanate nanotube powders prepared by hydrothermal process using metal Ti particles as a precursor

Author:: Keshui Hu; Xin Xiao; Xiufang Cao; Rong Hao; Xiaoxi Zuo; Xiaojing Zhang; Junmin Nan
Source:: Journal of hazardous materials 2011 v.192 no.2 pp. 514-520
ISSN:: 0304-3894
Subject:: adsorption; autoclaves; irradiation; methylene blue; models; nanotubes; photocatalysis; pollutants; powders; recycling; wastewater
Abstract:: ... Titanate nanotube powders (TNTPs) with the twofold removal ability, i.e. adsorptive separation and photocatalytic degradation, are synthesized under hydrothermal conditions using metal Ti particles as a precursor in the concentrated alkaline solution, and their morphology, structure, adsorptive and photocatalytic properties are investigated. Under hydrothermal conditions, the titanate nanotubes (T ...
DOI:: 10.1016/j.jhazmat.2011.05.053
: https://doi.org/10.1016/j.jhazmat.2011.05.053

40. Advances in application of ultraviolet irradiation for biofilm control in water and wastewater infrastructure

Author:: Xueru Luo; Baoping Zhang; Yinghua Lu; Yang Mei; Liang Shen
Source:: Journal of hazardous materials 2022 v.421 pp. 126682
ISSN:: 0304-3894
Subject:: aquatic environment; biofilm; disinfection; irradiation; lamps; oxidation; plankton; ultraviolet radiation; wastewater; water utilities
Abstract:: ... Biofilms are ubiquitous in aquatic environment. While so far, most of the ultraviolet (UV) disinfection studies focus on planktonic bacteria, and only limited attention has been given to UV irradiation on biofilms. To enrich this knowledge, the present paper reviews the up-to-date studies about applying UV to control biofilms in water and wastewater infrastructure. The development of UV light sour ...
DOI:: 10.1016/j.jhazmat.2021.126682
: https://doi.org/10.1016/j.jhazmat.2021.126682

41. Ag loaded WO3 nanoplates for efficient photocatalytic degradation of sulfanilamide and their bactericidal effect under visible light irradiation

Author:: Wenyu Zhu; Jincheng Liu; Shuyan Yu; Yan Zhou; Xiaoli Yan
Source:: Journal of hazardous materials 2016 pp. -
ISSN:: 0304-3894
Subject:: Escherichia coli; antibacterial properties; antibiotics; irradiation; nanosilver; photocatalysis; photocatalysts; photolysis; sulfanilamide; surface water; tungsten oxide
Abstract:: ... Sulfonamides (SAs) are extensively used antibiotics and their residues in the water bodies propose potential threat to the public. In this study, degradation efficiency of sulfanilamide (SAM), which is the precursor of SAs, using WO3 nanoplates and their Ag heterogeneous as photocatalysts was investigated.WO3 nanoplates with uniform size were synthesized by a facile one step hydrothermal method. D ...
DOI:: 10.1016/j.jhazmat.2016.06.066
: https://doi.org/10.1016/j.jhazmat.2016.06.066

42. Ag-bridged Ag2O nanowire network/TiO2 nanotube array p–n heterojunction as a highly efficient and stable visible light photocatalyst

Author:: Chengbin Liu; Chenghao Cao; Xubiao Luo; Shenglian Luo
Source:: Journal of hazardous materials 2015 v.285 pp. 319-324
ISSN:: 0304-3894
Subject:: adsorption; electrochemistry; irradiation; nanoparticles; nanosilver; nanotubes; nanowires; p-nitrophenol; photocatalysis; photocatalysts; titanium dioxide
Abstract:: ... A unique Ag-bridged Ag2O nanowire network/TiO2 nanotube array p–n heterojunction (Ag–Ag2O/TiO2 NT) was fabricated by simple electrochemical method. Ag nanoparticles were firstly electrochemically deposited onto the surface of TiO2 NT and then were partly oxidized to Ag2O nanowires while the rest of Ag mother nanoparticles were located at the junctions of Ag2O nanowire network. The Ag–Ag2O/TiO2 NT ...
DOI:: 10.1016/j.jhazmat.2014.12.020
: https://doi.org/10.1016/j.jhazmat.2014.12.020

43. Ag2CO3/UiO-66(Zr) composite with enhanced visible-light promoted photocatalytic activity for dye degradation

Author:: Zhou Sha; Hardy Sze On Chan; Jishan Wu
Source:: Journal of hazardous materials 2015 v.299 pp. 132-140
ISSN:: 0304-3894
Subject:: coordination polymers; irradiation; photocatalysis; photocatalysts; water treatment; zirconium
Abstract:: ... Because of their excellent properties, metal-organic frameworks (MOFs) are considered as ideal materials for the development of visible-light photocatalyst. Particularly, although increasing research interests have been put on MOF based photocatalysts, the MOF supported Ag2CO3 as photocatalyst has not been reported in the field of water treatment. In this study, a zirconium based MOF, UiO-66, was ...
DOI:: 10.1016/j.jhazmat.2015.06.016
: https://doi.org/10.1016/j.jhazmat.2015.06.016

44. Ag3PO4/graphene-oxide composite with remarkably enhanced visible-light-driven photocatalytic activity toward dyes in water

Author:: Guodong Chen; Meng Sun; Qin Wei; Yongfang Zhang; Baocun Zhu; Bin Du
Source:: Journal of hazardous materials 2013 v.244-245 pp. 86-93
ISSN:: 0304-3894
Subject:: X-ray diffraction; nitrogen; photolysis; pollutants; scanning electron microscopy; reflectance; methyl orange; dyes; oxidation; irradiation; photocatalysts; scanning electron microscopes; adsorption
Abstract:: ... Ag3PO4/graphene-oxide (Ag3PO4/GO) composite has been synthesized by a liquid phase deposition method, and used for the photodegradation of organic dyes in water under visible light. The as-synthesized samples were characterized by X-ray diffraction, scanning electron microscope, N2 sorption–desorption, and UV–vis diffuse reflectance spectra. The SEM image indicated that Ag3PO4 particles were mainl ...
DOI:: 10.1016/j.jhazmat.2012.11.032
: https://doi.org/10.1016/j.jhazmat.2012.11.032

45. AgI modified covalent organic frameworks for effective bacterial disinfection and organic pollutant degradation under visible light irradiation

Author:: Fuyang Liu; Chenyi Nie; Qiqi Dong; Zhiyao Ma; Wen Liu; Meiping Tong
Source:: Journal of hazardous materials 2020 v.398 pp. 122865
ISSN:: 0304-3894
Subject:: Escherichia coli; acetaminophen; density functional theory; disinfection; irradiation; light; photocatalysis; photocatalysts; pollutants; rhodamines; water purification
Abstract:: ... Covalent organic frameworks (COFs) have recently been demonstrated to have great application potentials in water treatment. Their photocatalytic performance towards bacterial disinfection and organic pollutant degradation yet has seldom been investigated. In this study, AgI modified COFs (using 2,5-diaminopyridine and 1,3,5-triformylphloroglucinol as precursors) (COF-PD/AgI) were fabricated and th ...
DOI:: 10.1016/j.jhazmat.2020.122865
: https://doi.org/10.1016/j.jhazmat.2020.122865

46. AgI/TiO2 nanobelts monolithic catalyst with enhanced visible light photocatalytic activity

Author:: Junhui Yi; Lingling Huang; Hongjuan Wang; Hao Yu; Feng Peng
Source:: Journal of hazardous materials 2015 v.284 pp. 207-214
ISSN:: 0304-3894
Subject:: electrons; energy; irradiation; nanoparticles; photocatalysis; photocatalysts; superoxide anion; titanium dioxide
Abstract:: ... AgI nanoparticles (NPs) have been decorated on the TiO2 nanobelts (NBs) immobilized on a metal Ti substrate by a simple impregnating-precipitation method. The as-achieved AgI/TiO2 monolithic catalyst exhibits a high and stable visible photocatalytic activity toward acid orange II (AO-II) degradation, which is attributed to the suitable energy band match of AgI NPs and TiO2 NBs, leading to the effi ...
DOI:: 10.1016/j.jhazmat.2014.11.020
: https://doi.org/10.1016/j.jhazmat.2014.11.020

47. All-solid-state WO3/TQDs/In2S3 Z-scheme heterojunctions bridged by Ti3C2 quantum dots for efficient removal of hexavalent chromium and bisphenol A

Author:: Zhenting Yuan; Huoshuai Huang; Najun Li; Dongyun Chen; Qingfeng Xu; Hua Li; Jinghui He; Jianmei Lu
Source:: Journal of hazardous materials 2021 v.409 pp. 125027
ISSN:: 0304-3894
Subject:: bisphenol A; chromium; electron transfer; irradiation; light; nanosheets; photocatalysis; photocatalysts; photooxidation; photoreduction; remediation; semiconductors
Abstract:: ... Ti₃C₂ quantum dots (TQDs) derived from ultrathin few-layered Ti₃C₂ nanosheets were served as the low-cost solid electron mediator of photogenerated carriers at the semiconductor interfaces, which could greatly reserve the reductive and oxidative reaction sites on the surface of heterojunctions and accelerate the reduction and oxidation reactions. The all-solid-state TQDs-bridge WO₃/TQDs/In₂S₃ Z-sc ...
DOI:: 10.1016/j.jhazmat.2020.125027
: https://doi.org/10.1016/j.jhazmat.2020.125027

48. All-solid-state Z-scheme WO3 nanorod/ZnIn2S4 composite photocatalysts for the effective degradation of nitenpyram under visible light irradiation

Author:: Mengling Tang; Yanhui Ao; Peifang Wang; Chao Wang
Source:: Journal of hazardous materials 2020 v.387 pp. 121713
ISSN:: 0304-3894
Subject:: dielectric spectroscopy; electric current; electron paramagnetic resonance spectroscopy; high performance liquid chromatography; irradiation; mass spectrometry; nanorods; nitenpyram; photocatalysis; photocatalysts; photoluminescence; sulfides; superoxide anion; tungsten oxide
Abstract:: ... A Z-scheme WO₃/ZnIn₂S₄ photocatalyst was synthesized via a simple solvothermal method. Compared with pure WO₃ and ZnIn₂S₄, photocatalytic experiments showed that these Z-scheme photocatalysts exhibited enhanced activity for the degradation of nitenpyram (NTP). The apparent rate constant (k) of NTP degradation on 50WZ (WO₃/ 50 wt% Znln₂S₄) was 0.042 min⁻¹ (∼3.8 times higher than WO₃ and ∼2.5 times ...
DOI:: 10.1016/j.jhazmat.2019.121713
: https://doi.org/10.1016/j.jhazmat.2019.121713

49. Ameliorative photocatalytic dye degradation of hydrothermally synthesized bimetallic Ag-Sn hybrid nanocomposite treated upon domestic wastewater under visible light irradiation

Author:: Rajesh Pandiyan; Selvakumar Dharmaraj; Sivasankaran Ayyaru; Abimanyu Sugumaran; Jeevasree Somasundaram; Amsa Samreen Kazi; Sumathi C. Samiappan; Veeramuthu Ashokkumar; Chawalit Ngamcharussrivichai
Source:: Journal of hazardous materials 2022 v.421 pp. 126734
ISSN:: 0304-3894
Subject:: absorption; dyes; fabrics; irradiation; light; mung beans; municipal wastewater; nanocomposites; organic matter; photocatalysis; photocatalysts; polytetrafluoroethylene; sedimentation rate; seedlings; wastewater treatment; water quality; India
Abstract:: ... Industrial and textile dyes are the major source of water pollutants in the Coimbatore Districts of Tamil Nadu, India. The highly stable organic dyes from these industries are being discharged untreated into neighboring rivers, lakes, and ponds. Thus, the present study mainly focused on the preparation of bimetallic nanocomposite (Ag-Sn) through Free-facile Teflon autoclave methodology and their s ...
DOI:: 10.1016/j.jhazmat.2021.126734
: https://doi.org/10.1016/j.jhazmat.2021.126734

50. Amino-functionalized MIL-88B as heterogeneous photo-Fenton catalysts for enhancing tris-(2-chloroisopropyl) phosphate (TCPP) degradation: Dual excitation pathways accelerate the conversion of [tbnd]FeIII to [tbnd]FeII under visible light irradiation

Author:: Hang Liu; Hua Yin; Xiaolong Yu; Minghan Zhu; Zhi Dang
Source:: Journal of hazardous materials 2022 v.425 pp. 127782
ISSN:: 0304-3894
Subject:: catalysts; irradiation; light; organophosphorus compounds; pH; phosphates
Abstract:: ... In this work, the amino-functionalized metal-organic frameworks (MIL-88B-NH₂) was synthesized, characterized and used as heterogeneous photo-Fenton catalyst for tris-(2-chloroisopropyl) phosphate (TCPP) degradation. The photo-Fenton activity of MIL-88B-NH₂ was investigated on the basis of influence factors, such as initial pH and TCPP concentration, and coexisting impurities. The results revealed ...
DOI:: 10.1016/j.jhazmat.2021.127782
: https://doi.org/10.1016/j.jhazmat.2021.127782

51. Ammonia-modified graphene sheets decorated with magnetic Fe3O4 nanoparticles for the photocatalytic and photo-Fenton degradation of phenolic compounds under sunlight irradiation

Author:: Purna K. Boruah; Bhagyasmeeta Sharma; Indrapal Karbhal; Manjusha V. Shelke; Manash R. Das
Source:: Journal of hazardous materials 2016 pp. -
ISSN:: 0304-3894
Subject:: 2-chlorophenol; graphene; graphene oxide; irradiation; magnetite; nanocomposites; nanoparticles; phenol; photocatalysis; photocatalysts; remediation; solar radiation; synergism
Abstract:: ... Synthesis of easily separable and eco-friendly efficient catalyst with both photocatalytic and photo-Fenton degradation properties is of great importance for environment remediation application. Herein, ammonia-modified graphene (AG) sheets decorated with Fe3O4 nanoparticles (AG/Fe3O4) as a magnetically recoverable photocatalyst by a simple in situ solution chemistry approach. First, we have funct ...
DOI:: 10.1016/j.jhazmat.2016.11.023
: https://doi.org/10.1016/j.jhazmat.2016.11.023

52. Amoxicillin photodegradation under visible light catalyzed by metal-free carbon nitride: An investigation of the influence of the structural defects

Author:: Ingrid F. Silva; Ivo F. Teixeira; Regiane D.F. Rios; Gustavo M. do Nascimento; Ildefonso Binatti; Henrique F.V. Victória; Klaus Krambrock; Luiz A. Cury; Ana Paula C. Teixeira; Humberto O. Stumpf
Source:: Journal of hazardous materials 2021 v.401 pp. 123713
ISSN:: 0304-3894
Subject:: amoxicillin; carbon; carbon nitride; irradiation; light; melamine; photocatalysis; photolysis; polymers; thiourea
Abstract:: ... Herein, the structural defects of metal-free polymeric carbon nitrides were controlled by making use of different precursors in their syntheses, i.e. melamine (CN-M) and thiourea (CN-T), as well as a 1:1 mixture of them (CN-1M:1 T). By controlling the structural defects, the electronic, morphological and chemical properties were modified. Additionally, the activities of synthesized PCNs were evalu ...
DOI:: 10.1016/j.jhazmat.2020.123713
: https://doi.org/10.1016/j.jhazmat.2020.123713

53. An efficient broad spectrum-driven carbon and oxygen co-doped g-C3N4 for the photodegradation of endocrine disrupting: Mechanism, degradation pathway, DFT calculation and toluene selective oxidation

Author:: Liquan Jing; Duidui Wang; Minqiang He; Yuanguo Xu; Meng Xie; Yanhua Song; Hui Xu; Huaming Li
Source:: Journal of hazardous materials 2021 v.401 pp. 123309
ISSN:: 0304-3894
Subject:: benzaldehyde; bisphenol A; carbon; irradiation; mass spectrometry; nuclear magnetic resonance spectroscopy; oxidation; oxygen; photocatalysis; photolysis; polymerization; reaction mechanisms; solvents; toluene; wavelengths
Abstract:: ... In this study, a new type of carbon and oxygen co-doped g-C₃N₄ (PACN) was successfully synthesized by a one-step thermal polymerization method for the photodegradation of Bisphenol A (BPA) and selective oxidation of toluene to benzaldehyde. The degradation rate of BPA was 23.58 times higher than that of pristine g-C₃N₄ and the eﬃciency benzaldehyde formation rate without the need of any solvent in ...
DOI:: 10.1016/j.jhazmat.2020.123309
: https://doi.org/10.1016/j.jhazmat.2020.123309

54. An efficient photo Fenton system for in-situ evolution of H2O2via defective iron-based metal organic framework@ZnIn2S4 core-shell Z-scheme heterojunction nanoreactor

Author:: Meijie Liu; Zipeng Xing; Huanan Zhao; Sijia Song; Yichao Wang; Zhenzi Li; Wei Zhou
Source:: Journal of hazardous materials 2022 v.437 pp. 129436
ISSN:: 0304-3894
Subject:: absorption; bisphenol A; cost effectiveness; hydrogen production; irradiation; ligands; light; nanosheets; ofloxacin; photocatalysis
Abstract:: ... The fabrication of an efficient photoFenton system without the addition of H₂O₂ is still a challenge and is cost-effective and favorable for practical applications. In this work, a core@shell Z-scheme heterojunction nanoreactor was successfully fabricated, in which hierarchical two-dimensional (2D) ZnIn₂S₄ nanosheets are coated on defective iron-based metal-organic frameworks (MOFs) (NH₂-MIL-88B(F ...
DOI:: 10.1016/j.jhazmat.2022.129436
: https://doi.org/10.1016/j.jhazmat.2022.129436

55. An outer membrane photosensitized Geobacter sulfurreducens-CdS biohybrid for redox transformation of Cr(VI) and tetracycline

Author:: Xiaofeng Yi; Shurui Liu; Mingyu Luo; Qingbiao Li; Yuanpeng Wang
Source:: Journal of hazardous materials 2022 v.431 pp. 128633
ISSN:: 0304-3894
Subject:: Geobacter sulfurreducens; catalytic activity; cytochromes; electric current; irradiation; photocatalysts; pollution; redox reactions; tetracycline; toxicity; voltammetry; wastewater
Abstract:: ... Microbe-photocatalyst biohybrids, integrating the optimal attributes of whole-cell catalysts and nanometer photocatalysts, have emerged as a promising strategy for environment-associated applications. However, few such biohybrids have been tested for complex pollution systems. Herein, we constructed an outer membrane photosensitized Geobacter sulfurreducens (G. sulfurreducens)-CdS biohybrid, which ...
DOI:: 10.1016/j.jhazmat.2022.128633
: https://doi.org/10.1016/j.jhazmat.2022.128633

56. Anionic polyacrylamide-assisted construction of thin 2D-2D WO3/g-C3N4 Step-scheme heterojunction for enhanced tetracycline degradation under visible light irradiation

Author:: Tao Pan; Dongdong Chen; Weicheng Xu; Jianzhang Fang; Shuxing Wu; Zhang Liu; Kun Wu; Zhanqiang Fang
Source:: Journal of hazardous materials 2020 v.393 pp. 122366
ISSN:: 0304-3894
Subject:: carbon; carbon nitride; high performance liquid chromatography; irradiation; light; mass spectrometry; nanosheets; oxygen; photocatalysis; photocatalysts; polyacrylamide; tetracycline; tungsten oxide
Abstract:: ... Thin 2D/2D WO₃/g-C₃N₄ Step-scheme (S-scheme) heterojunction with carbon doping and bridge (C–W/N) was constructed with anionic polyacrylamide (APAM), in which APAM functioned as an assistant templet and a carbon source. APAM and WO₃ were inserted into g-C₃N₄ nanosheet. The carbon, thin planar structure and WO₃ with oxygen vacancies result in fast charge transfer, high quantum efficiency and strong ...
DOI:: 10.1016/j.jhazmat.2020.122366
: https://doi.org/10.1016/j.jhazmat.2020.122366

57. Anodic titanium oxide as immobilized photocatalyst in UV or visible light devices

Author:: M.V. Diamanti; M. Ormellese; E. Marin; A. Lanzutti; A. Mele; M.P. Pedeferri
Source:: Journal of hazardous materials 2011 v.186 no.2-3 pp. 2103-2109
ISSN:: 0304-3894
Subject:: annealing; titanium; electrolytes; crystal structure; nitrogen; photolysis; crystals; sulfuric acid; titanium dioxide; wastewater; scanning electron microscopy; elemental composition; irradiation; photocatalysts
Abstract:: ... Titanium anodizing can be a powerful technique to generate photoactive oxides, strongly adherent to the metallic substrate, and to modify their chemical composition by inducing doping effects. This work investigates the photocatalytic behavior of differently obtained anodic TiO₂ films under UV and visible light irradiation, so as to define the best treatment for wastewaters purifiers. Anodizing wa ...
DOI:: 10.1016/j.jhazmat.2010.12.128
: https://doi.org/10.1016/j.jhazmat.2010.12.128

58. Antibacterial properties and mechanism of biopolymer-based films functionalized by CuO/ZnO nanoparticles against Escherichia coli and Staphylococcus aureus

Author:: Guilin Guan; Linan Zhang; Junxiang Zhu; Hao Wu; Wenxiang Li; Qingjie Sun
Source:: Journal of hazardous materials 2021 v.402 pp. 123542
ISSN:: 0304-3894
Subject:: DNA; DNA repair; Escherichia coli; Staphylococcus aureus; antioxidant activity; bacteria; cell membranes; cell walls; chitosan; cupric oxide; death; gene expression regulation; irradiation; nanocomposites; photocatalysis; reactive oxygen species; sodium alginate; transcription (genetics); transcriptomics; zinc oxide
Abstract:: ... In this study, the nanocomposite film (SA-CS@CuO/ZnO) composed of sodium alginate (SA) and chitosan (CS) functionalized by copper oxide nanoparticles (CuONPs) and zinc oxide nanoparticles (ZnONPs) was fabricated, then its antibacterial mechanisms against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) were systematically investigated. When the contents of CuONPs and ZnONPs reached ...
DOI:: 10.1016/j.jhazmat.2020.123542
: https://doi.org/10.1016/j.jhazmat.2020.123542

59. Antimicrobial and antibiofilm efficacy of self-cleaning surfaces functionalized by TiO2 photocatalytic nanoparticles against Staphylococcus aureus and Pseudomonas putida

Author:: Blanca Jalvo; Marisol Faraldos; Ana Bahamonde; Roberto Rosal
Source:: Journal of hazardous materials 2017 v.340 pp. 160-170
ISSN:: 0304-3894
Subject:: Pseudomonas putida; Staphylococcus aureus; antibacterial properties; bacteria; bacterial colonization; biofilm; extracellular matrix; filters; glass; hydrophilicity; hydrophobicity; irradiation; methylene blue; nanoparticles; photocatalysis; photolysis; reactive oxygen species; titanium dioxide; ultraviolet radiation; viability
Abstract:: ... A photocatalytic sol of TiO2 nanoparticles has been used for creating self-cleaning antimicrobial flat and porous glass surfaces. The substrates were irradiated to study their photocatalytic properties and behavior in the presence of biofilm-forming bacteria. Smooth glass surfaces and glass microfiber filters were covered with 1.98×10⁻³±1.5×10⁻⁴gcm⁻² and 8.55×10⁻³±3.0×10⁻⁴gcm⁻² densities, respecti ...
DOI:: 10.1016/j.jhazmat.2017.07.005
: https://doi.org/10.1016/j.jhazmat.2017.07.005

60. Antimicrobial mechanisms of g-C3N4 nanosheets against the oomycetes Phytophthora capsici: Disrupting metabolism and membrane structures and inhibiting vegetative and reproductive growth

Author:: Lin Cai; Xuefeng Wei; Hui Feng; Guangjin Fan; Changdan Gao; Haitao Chen; Xianchao Sun
Source:: Journal of hazardous materials 2021 v.417 pp. 126121
ISSN:: 0304-3894
Subject:: Phytophthora capsici; anti-infective agents; antimicrobial properties; antioxidants; autophagy; cell membranes; drug resistance; germination; irradiation; metabolism; mycelium; nanosheets; pepper; plant growth; sporangia; ultrastructure; zoospores
Abstract:: ... To understand the potential of urea-synthesized g-C₃N₄ nanosheets (0.125–1 mg/mL) as antimicrobial agents against oomycetes, an investigation of the interaction mechanism between g-C₃N₄ nanosheets and Phytophthora capsici was conducted. Transcription analysis showed that after being exposed to g-C₃N₄ nanosheets for 1 h, P. capsici triggered a sharp upregulation of antioxidant activities and struct ...
DOI:: 10.1016/j.jhazmat.2021.126121
: https://doi.org/10.1016/j.jhazmat.2021.126121

61. Antimicrobial surfaces with self-cleaning properties functionalized by photocatalytic ZnO electrosprayed coatings

Author:: Laura Valenzuela; Ana Iglesias; Marisol Faraldos; Ana Bahamonde; Roberto Rosal
Source:: Journal of hazardous materials 2019 pp. -
ISSN:: 0304-3894
Subject:: Staphylococcus aureus; antibacterial properties; autumn; bacterial colonization; bioavailability; biofilm; coatings; contact angle; glass; hydrophilicity; ions; irradiation; methylene blue; microparticles; photocatalysis; photolysis; reactive oxygen species; spring; summer; ultraviolet radiation; winter; zinc; zinc oxide
Abstract:: ... Photoactive coatings of sol-gel ZnO suspensions were electrosprayed on glass substrates to produce self-cleaning antimicrobial functionalized surfaces. ZnO-functionalized materials exhibited a uniform external surface consisting of a pattern of microspheres with diameters in the 100-300 nm range. Electrospray allowed surface densities up to 0.30 mg cm-2 that displayed considerable hydrophilicity. ...
DOI:: 10.1016/j.jhazmat.2019.02.073
: https://doi.org/10.1016/j.jhazmat.2019.02.073

62. Applicability of light sources and the inner filter effect in UV/acetylacetone and UV/H2O2 processes

Author:: Bingdang Wu; Minghui Yang; Ran Yin; Shujuan Zhang
Source:: Journal of hazardous materials 2017 v.335 pp. 100-107
ISSN:: 0304-3894
Subject:: color; energy efficiency; filters; hydrogen peroxide; irradiation; lamps; photochemistry; photons; reaction mechanisms; solar radiation; xenon
Abstract:: ... Light source is a crucial factor in the application of a photochemical process, which determines the energy efficiency. The performances of acetylacetone (AA) in conversion of aqueous contaminants under irradiation with a low-pressure mercury lamp, a medium-pressure mercury lamp, a xenon lamp, and natural sunlight were investigated and compared with those of H2O2 as reference. In all cases, AA was ...
DOI:: 10.1016/j.jhazmat.2017.04.011
: https://doi.org/10.1016/j.jhazmat.2017.04.011

63. Aqueous arsenite removal by simultaneous ultraviolet photocatalytic oxidation-coagulation of titanium sulfate

Author:: Yuxia Wang; Jinming Duan; Wei Li; Simon Beecham; Dennis Mulcahy
Source:: Journal of hazardous materials 2016 v.303 pp. 162-170
ISSN:: 0304-3894
Subject:: X-ray photoelectron spectroscopy; aqueous solutions; arsenic; arsenites; coagulation; energy; hydroxyl radicals; irradiation; oxidation; pH; photocatalysis; sulfates; titanium; titanium dioxide
Abstract:: ... This study explored the efficacy and efficiency of a simultaneous UV-catalyzed oxidation–coagulation process of titanium sulfate (UV/Ti(SO4)2) for efficient removal of As(III) from water. It revealed that, As(III) could be oxidized to As(V) during the UV catalyzed coagulation of Ti(SO4)2 with highly efficient As(III) removal in the pH range 4–6. The UV catalyzed oxidation–coagulation showed surpri ...
DOI:: 10.1016/j.jhazmat.2015.10.021
: https://doi.org/10.1016/j.jhazmat.2015.10.021

64. Assessment of individual and mixed alkali activated binders for solidification of a nuclear grade organic resin loaded with 134Cs, 60Co and 152+154Eu radionuclides

Author:: M.R. El-Naggar; E.H. El-Masry; A.A. El-Sadek
Source:: Journal of hazardous materials 2019 v.375 pp. 149-160
ISSN:: 0304-3894
Subject:: Fourier transform infrared spectroscopy; X-ray diffraction; cesium; cobalt; compression strength; diffusivity; feldspar; gamma radiation; irradiation; leaching; radionuclides; scanning electron microscopy; solidification; wastes
Abstract:: ... Individual metakaolin-based alkali activated binder (AAB) was utilized to optimize binary and ternary ones having feldspar/metakaolin and slag/feldspar+metakaolin ratios of 0.3 and 0.4, respectively. These three AABs had the ability to directly solidify 10.0 (FMK0-10R), 8.0 (FMK3-8R) and 12.0% (S4FMK3-12R) of the nuclear grade KY-2 beads, respectively, recording compressive strength values greater ...
DOI:: 10.1016/j.jhazmat.2019.04.063
: https://doi.org/10.1016/j.jhazmat.2019.04.063

65. Augmentation of microbial fuel cell and photocatalytic polishing technique for the treatment of hazardous dimethyl phthalate containing wastewater

Author:: Sumaya Sarmin; Mostafa Tarek; Chin Kui Cheng; Selvaraj Mohana Roopan; Md. Maksudur Rahman Khan
Source:: Journal of hazardous materials 2021 v.415 pp. 125587
ISSN:: 0304-3894
Subject:: Pseudomonas aeruginosa; acetic acid; biocatalysts; chemical oxygen demand; dimethyl phthalate; irradiation; light; metabolites; microbial fuel cells; photocatalysis; power generation; pyocyanin; total organic carbon; wastewater; wastewater treatment
Abstract:: ... In the present paper, the potentiality of integrating microbial fuel cells (MFCs) with a photocatalytic reactor to maximize the wastewater treatment efficiency with concurrent power generation was explored. Dimethyl phthalate (DMP) and acetic acid (AA) were the employed substrate and the co-substrate, respectively, using Pseudomonas aeruginosa as a biocatalyst. MFCs operated by single substrate sh ...
DOI:: 10.1016/j.jhazmat.2021.125587
: https://doi.org/10.1016/j.jhazmat.2021.125587

66. Benzothiadiazole functionalized Co-doped MIL-53-NH2 with electron deficient units for enhanced photocatalytic degradation of bisphenol A and ofloxacin under visible light

Author:: Shi-Wen Lv; Jing-Min Liu; Ning Zhao; Chun-Yang Li; Zhi-Hao Wang; Shuo Wang
Source:: Journal of hazardous materials 2020 v.387 pp. 122011
ISSN:: 0304-3894
Subject:: bisphenol A; carbon dioxide; cobalt; irradiation; light; ofloxacin; photocatalysis; photocatalysts; pollutants; wastewater
Abstract:: ... Nowadays, designing highly active photocatalysts for pollutant degradation under visible light still remains a challenging problem. Herein, a novel benzothiadiazole functionalized Co-doped MOF-based photocatalyst with electron deficient unit was first synthesized via a feasible step-by-step assembly strategy. Benzothiadiazole, as typical electron deficient group, could effectively promote the sepa ...
DOI:: 10.1016/j.jhazmat.2019.122011
: https://doi.org/10.1016/j.jhazmat.2019.122011

67. Bifunctional 2D/2D g-C3N4/BiO2−x nanosheets heterojunction for bacterial disinfection mechanisms under visible and near-infrared light irradiation

Author:: Nannan He; Zichang Guo; Chen Zhang; Yalin Yu; Ling Tan; Haopeng Luo; Lu li; Janina Bahnemann; Huan Chen; Fang Jiang
Source:: Journal of hazardous materials 2022 v.436 pp. 129123
ISSN:: 0304-3894
Subject:: Escherichia coli K12; cell membranes; death; disinfection; energy metabolism; irradiation; light; lighting; lipid peroxidation; microbial communities; nanosheets; photocatalysis; surface water
Abstract:: ... The efficient deployment of visible and near-infrared (NIR) light for photocatalytic disinfection is of great concern a matter. Herein, we report a specific bifunctional 2D/2D g-C₃N₄/BiO₂₋ₓ nanosheets heterojunction, prepared through a self-assembly approach. Delightfully, the obtained 2D/2D heterojunctions exhibited satisfactory photocatalytic disinfection performance towards Escherichia coli K-1 ...
DOI:: 10.1016/j.jhazmat.2022.129123
: https://doi.org/10.1016/j.jhazmat.2022.129123

68. Bimetallic Ag-Zn-BTC/GO composite as highly efficient photocatalyst in the photocatalytic degradation of reactive yellow 145 dye in water

Author:: Manh B. Nguyen; Giang H. Le; Trinh Duy Nguyen; Quang K. Nguyen; Trang T.T. Pham; Taeyoon Lee; Tuan A. Vu
Source:: Journal of hazardous materials 2021 v.420 pp. 126560
ISSN:: 0304-3894
Subject:: X-ray photoelectron spectroscopy; absorption; biochemical oxygen demand; chemical oxygen demand; dyes; electric current; graphene oxide; hot water treatment; irradiation; liquid chromatography; microwave treatment; mineralization; oxygen; pH; photocatalysis; photocatalysts; photoluminescence; reflectance; spectrometers; superoxide anion; synergism; total organic carbon
Abstract:: ... Agₓ-Zn₁₀₀₋ₓ-BTC/GO composites (BTC: benzene-1,3,5-tricarboxylic, GO: graphene oxide) with different Ag/Zn molar ratios were synthesized using microwave-assisted hydrothermal treatment. The Agₓ-Zn₁₀₀₋ₓ-BTC/GO exhibited excellent photocatalytic performance in the reactive yellow 145 dye (RY-145) degradation under irradiation of visible light with nearly 100% of RY-145 removal after 35 min, as compar ...
DOI:: 10.1016/j.jhazmat.2021.126560
: https://doi.org/10.1016/j.jhazmat.2021.126560

69. Biotemplated preparation of CdS nanoparticles/bacterial cellulose hybrid nanofibers for photocatalysis application

Author:: Jiazhi Yang; Junwei Yu; Jun Fan; Dongping Sun; Weihua Tang; Xuejie Yang
Source:: Journal of hazardous materials 2011 v.189 no.1-2 pp. 377-383
ISSN:: 0304-3894
Subject:: temperature; nanofibers; hybrids; X-ray photoelectron spectroscopy; X-ray diffraction; thermogravimetry; absorption; nanocrystals; photocatalysis; cellulose; thiourea; transmission electron microscopy; methyl orange; irradiation; photocatalysts; nanoparticles
Abstract:: ... In this work, we describe a novel facile and effective strategy to prepare micrometer-long hybrid nanofibers by deposition of CdS nanoparticles onto the substrate of hydrated bacterial cellulose nanofibers (BCF). Hexagonal phase CdS nanocrystals were achieved via a simple hydrothermal reaction between CdCl₂ and thiourea at relatively low temperature. The prepared pristine BCF and the CdS/BCF hybri ...
DOI:: 10.1016/j.jhazmat.2011.02.048
: https://doi.org/10.1016/j.jhazmat.2011.02.048

70. Boosting photocatalytic degradation of tetracycline under visible light over hierarchical carbon nitride microrods with carbon vacancies

Author:: Quanhao Shen; Lingfei Wei; Rehana Bibi; Ke Wang; Dandan Hao; Jiancheng Zhou; Naixu Li
Source:: Journal of hazardous materials 2021 v.413 pp. 125376
ISSN:: 0304-3894
Subject:: absorption; carbon nitride; graphene; irradiation; light; microstructure; nanosheets; photocatalysis; photocatalysts; photolysis; pollution; remediation; surface area; tetracycline; wastewater
Abstract:: ... Graphitic carbon nitride is considered as one of the promising photocatalysts for pollution elimination from wastewater. Manipulating the microstructure of carbon nitride remains a challengeable task, which is essential for improving light absorption, separating photogenerated carrier and creating reactive sites. Herein, a carbon vacancy modified hierarchical carbon nitride microrod (CN1.5) has be ...
DOI:: 10.1016/j.jhazmat.2021.125376
: https://doi.org/10.1016/j.jhazmat.2021.125376

71. Boron- and phenyl-codoped graphitic carbon nitride with greatly enhanced light responsive range for photocatalytic disinfection

Author:: Tianran Lin; Zhiping Song; Yarong Wu; Ling Chen; Shaoyun Wang; Fengfu Fu; Liangqia Guo
Source:: Journal of hazardous materials 2018 v.358 pp. 62-68
ISSN:: 0304-3894
Subject:: Escherichia coli; bacteria; carbon nitride; condensation reactions; cytotoxicity; disinfection; graphene; hydrogen peroxide; irradiation; lighting; photocatalysis; photocatalysts; solar energy
Abstract:: ... The development of metal-free photocatalyst to make maximum use of the solar energy for photocatalytic disinfection is highly desired. Herein, boron-and phenyl-codoped graphitic carbon nitride was prepared by thermal polycondensation of cyanamide with 3-aminobenzeneboronic acid and applied as photocatalyst to inactivate Escherichia coli (E. coli). The photocatalysts exhibited the enhanced light re ...
DOI:: 10.1016/j.jhazmat.2018.06.053
: https://doi.org/10.1016/j.jhazmat.2018.06.053

72. CFD modeling of a UV-LED photocatalytic odor abatement process in a continuous reactor

Author:: Zimeng Wang; Jing Liu; Yuancan Dai; Weiyang Dong; Shicheng Zhang; Jianmin Chen
Source:: Journal of hazardous materials 2012 v.215-216 no. pp. 25-31
ISSN:: 0304-3894
Subject:: catalysts; dimethyl sulfide; fluid mechanics; irradiation; models; odor control; photocatalysis; reaction kinetics
Abstract:: ... This paper presents a model study of a UV light-emitting-diode (UV-LED) based photocatalytic odor abatement process. It integrated computational fluid dynamics (CFD) modeling of the gas flow in the reactor with LED-array radiation field calculation and Langmuir–Hinshelwood reaction kinetics. It was applied to simulate the photocatalytic degradation of dimethyl sulfide (DMS) in a UV-LED reactor bas ...
DOI:: 10.1016/j.jhazmat.2012.02.021
: https://doi.org/10.1016/j.jhazmat.2012.02.021

73. Carbamazepine degradation by gamma irradiation coupled to biological treatment

Author:: Shizong Wang; Jianlong Wang
Source:: Journal of hazardous materials 2017 v.321 pp. 639-646
ISSN:: 0304-3894
Subject:: biodegradation; biological treatment; gamma radiation; irradiation; organic acids and salts; organic carbon; pollutants; wastewater; wastewater treatment
Abstract:: ... Carbamazepine is an emerging contaminant and resistant to biodegradation, which cannot be effectively removed by the conventional biological wastewater treatment processes. In this study, the combined gamma irradiation and biodegradation was employed to remove carbamazepine from wastewater. The effect of dose on the removal of carbamazepine was studied at different doses (300, 600 and 800Gy). The ...
DOI:: 10.1016/j.jhazmat.2016.09.053
: https://doi.org/10.1016/j.jhazmat.2016.09.053

74. Carbon nanofiber based superhydrophobic foam composite for high performance oil/water separation

Author:: Zheng Guo; Biao Long; Shijie Gao; Junchen Luo; Ling Wang; Xuewu Huang; Dong Wang; Huaiguo Xue; Jiefeng Gao
Source:: Journal of hazardous materials 2021 v.402 pp. 123838
ISSN:: 0304-3894
Subject:: absorption; adhesion; adsorption; carbon nanofibers; corrosion; emulsions; foams; humans; hydrophobicity; irradiation; light intensity; oil spills; oils; petroleum; polydimethylsiloxane; skeleton; surface roughness; surface temperature; viscosity
Abstract:: ... Oil spill has now been a serious environmental issue, threatening the aquatic ecosystems and even human living environment. It is still challenging to develop absorbents for efficient oil/water emulsion separation and clean-up of viscous crude oil. Here, we propose a facile method to fabricate flexible and superhydrophobic foam composites for high efficiency oil/water separation under different co ...
DOI:: 10.1016/j.jhazmat.2020.123838
: https://doi.org/10.1016/j.jhazmat.2020.123838

75. Carbon quantum dots modified tubular g-C3N4 with enhanced photocatalytic activity for carbamazepine elimination: Mechanisms, degradation pathway and DFT calculation

Author:: Chun Zhao; Zhenzhu Liao; Wen Liu; Fuyang Liu; Jiangyu Ye; Jialiang Liang; Yunyi Li
Source:: Journal of hazardous materials 2020 v.381 pp. 120957
ISSN:: 0304-3894
Subject:: adsorption; carbon nitride; carbon quantum dots; chemical bonding; density functional theory; electron paramagnetic resonance spectroscopy; graphene; irradiation; light; melamine; oxidation; photocatalysis; photocatalysts; polymerization; quantum mechanics; superoxide anion
Abstract:: ... A novel tubular graphitic carbon nitride (g-C3N4) modified with carbon quantum dots (CQDs) was fabricated and employed for the elimination of carbamazepine (CBZ) under visible light irradiation. The as-fabricated metal-free catalysts exhibited tubular morphologies due to the preforming of tubular protonated melamine with CQDs surface adsorption as the polymerization precursors. The surface bonded ...
DOI:: 10.1016/j.jhazmat.2019.120957
: https://doi.org/10.1016/j.jhazmat.2019.120957

76. Carbothermal synthesis of biochar-supported metallic silver for enhanced photocatalytic removal of methylene blue and antimicrobial efficacy

Author:: Jun Shi; Jun Wang; Lebin Liang; Zhen Xu; Yu Chen; Shi Chen; Mengmeng Xu; Xiaozhi Wang; Shengsen Wang
Source:: Journal of hazardous materials 2021 v.401 pp. 123382
ISSN:: 0304-3894
Subject:: antimicrobial properties; biochar; carbon; electron paramagnetic resonance spectroscopy; electron transfer; hydroxyl radicals; industrial wastewater; irradiation; methylene blue; photocatalysis; photocatalysts; silver; singlet oxygen; sorption; superoxide anion
Abstract:: ... Pinewood biochar (PBC)-supported metallic silver (Agᵒ) was prepared via a one-step carbothermal reduction route (AgH) or a wet-chemistry reduction method (AgW). XRD and SEM confirmed Agᵒ was soldered on PBC matrix. Low methylene blue (MB) sorption was observed for unsupported Agᵒ nanoparticles (AgNP), AgH and AgW. Under ultraviolet (UV) light irradiation, net MB degradation by AgH (15.88 g kg⁻¹) w ...
DOI:: 10.1016/j.jhazmat.2020.123382
: https://doi.org/10.1016/j.jhazmat.2020.123382

77. Catalyst-free activation of peroxides under visible LED light irradiation through photoexcitation pathway

Author:: Yaowen Gao; Yixi Li; Linyu Yao; Simiao Li; Jin Liu; Hui Zhang
Source:: Journal of hazardous materials 2017 v.329 pp. 272-279
ISSN:: 0304-3894
Subject:: catalysts; catalytic activity; decolorization; electron paramagnetic resonance spectroscopy; electron transfer; eosin; free radicals; hydroxyl radicals; irradiation; models; peroxides; photochemical reactions; photoluminescence; pollution; rhodamines; sulfates
Abstract:: ... Catalysts are known to activate peroxides to generate active radicals (i.e., hydroxyl radical (OH) and sulfate radical (SO4⁻)) under certain conditions, but the activation of peroxides in the absence of catalysts under visible light irradiation has been rarely reported. This work demonstrates a catalyst-free activation of peroxides for the generation of OH and/or SO4⁻ through photoexcited electron ...
DOI:: 10.1016/j.jhazmat.2017.01.046
: https://doi.org/10.1016/j.jhazmat.2017.01.046

78. Catalytic decontamination of organic/inorganic pollutants in water and green H2 generation using nanoporous SnS2 micro-flower structured film

Author:: Supriya A. Patil; Nabeen K. Shrestha; Sajjad Hussain; Jongwan Jung; Sang-Wha Lee; Chinna Bathula; Abhijit N. Kadam; Hyunsik Im; Hyungsang Kim
Source:: Journal of hazardous materials 2021 v.417 pp. 126105
ISSN:: 0304-3894
Subject:: cathodes; decontamination; hydrogen production; irradiation; light; methylene blue; nanopores; nickel; pH; photocatalysis; photocatalysts; sustainable technology; vegetation; wastewater
Abstract:: ... Recycling water and generation of H₂ simultaneously as a green technology can be a key attraction in establishing environmental sustainability. Towards this endeavor, nanoporous SnS₂ film electrodes deposited by a solution process on nickel foam demonstrate a promising electrocatalytic activity towards generation of H₂ gas at cathode while the anodic reaction leads to the decomposition of urea-was ...
DOI:: 10.1016/j.jhazmat.2021.126105
: https://doi.org/10.1016/j.jhazmat.2021.126105

79. Catalytic degradation of Acid Orange 7 by manganese oxide octahedral molecular sieves with peroxymonosulfate under visible light irradiation

Author:: Lian Duan; Binzhe Sun; Mingyu Wei; Shilu Luo; Fei Pan; Aihua Xu; Xiaoxia Li
Source:: Journal of hazardous materials 2015 v.285 pp. 356-365
ISSN:: 0304-3894
Subject:: X-ray photoelectron spectroscopy; aqueous solutions; catalysts; catalytic activity; free radicals; irradiation; manganese; manganese oxides; pH; photolysis; sieves; sulfates
Abstract:: ... In this paper, the photodegradation of Acid Orange 7 (AO7) in aqueous solutions with peroxymonosulfate (PMS) was studied with manganese oxide octahedral molecular sieves (OMS-2) as the catalyst. The activities of different systems including OMS-2 under visible light irradiation (OMS-2/Vis), OMS-2/PMS and OMS-2/PMS/Vis were evaluated. It was found that the efficiency of OMS-2/PMS was much higher th ...
DOI:: 10.1016/j.jhazmat.2014.12.015
: https://doi.org/10.1016/j.jhazmat.2014.12.015

80. Ce/Eu redox couple functionalized HKUST-1 MOF insight to sono-photodegradation of malathion

Author:: Soleiman Mosleh; Khalil Rezaei; Kheibar Dashtian; Zaker Salehi
Source:: Journal of hazardous materials 2021 v.409 pp. 124478
ISSN:: 0304-3894
Subject:: absorption; blue light; irradiation; malathion; pH; photocatalysts; response surface methodology; ultrasonic treatment; ultrasonics
Abstract:: ... The Ce/Eu redox pair-functionalized HKUST-1 MOF, as an innovative environmentally friendly and recyclable sono-photocatalyst, was hydrothermally mixed and fully characterized by XRD, PL, EIS, FE-SEM, EDS, Mott-Schottky, chronoamperometry, and DRS techniques. The obtained chemical and optical characteristics of the n-type Ce/Eu-HKUST-1 MOF showed that the transfer of additional 4f orbital electrons ...
DOI:: 10.1016/j.jhazmat.2020.124478
: https://doi.org/10.1016/j.jhazmat.2020.124478

81. Changes in dissolved organic matter fluorescence and disinfection byproduct formation from UV and subsequent chlorination/chloramination

Author:: Bonnie A. Lyon; Rose M. Cory; Howard S. Weinberg
Source:: Journal of hazardous materials 2014 v.264 pp. 411-419
ISSN:: 0304-3894
Subject:: carbon; chloral hydrate; chlorination; chlorine; cyanogen; disinfection; dissolved organic matter; drinking water; factor analysis; fluorescence; human health; irradiation; surface water; water quality; water utilities; United States
Abstract:: ... Ultraviolet (UV) irradiation is being increasingly used to help drinking water utilities meet finished water quality regulations, but its influence on disinfection byproduct (DBP) precursors and DBP formation is not completely understood. This study investigated the effect of medium pressure (MP) UV combined with chlorination/chloramination on the fluorescent fraction of dissolved organic matter ( ...
DOI:: 10.1016/j.jhazmat.2013.10.065
: https://doi.org/10.1016/j.jhazmat.2013.10.065

82. Changes in element availability induced by sterilization in heavy metal contaminated substrates: A comprehensive study

Author:: Thomas Krauße; Eileen Schütze; René Phieler; David Fürst; Dirk Merten; Georg Büchel; Erika Kothe
Source:: Journal of hazardous materials 2019 v.370 pp. 70-79
ISSN:: 0304-3894
Subject:: autoclaving; gamma radiation; heat; heavy metals; ions; irradiation; microbial communities; microbiome; nitrogen; nutrient availability; nutrients; organic carbon; polluted soils
Abstract:: ... Microbiome analyses of soils and microcosm experiments depend on conditions that include sterilization in order to perform experimental manipulation of microbial communities. Still, they should represent conditions close to nature. When using metal contaminated soils, sterilization methods might alter metal availability. Here, four typical metal contaminated substrates were analyzed, representing ...
DOI:: 10.1016/j.jhazmat.2017.11.008
: https://doi.org/10.1016/j.jhazmat.2017.11.008

83. Changes in levels of N-nitrosamine formed from amine-containing compounds during chloramination via photocatalytic pretreatment with immobilized TiO2: Effect of source water and pH

Author:: Mingizem Gashaw Seid; Jeehye Byun; Wooyul Kim; Kangwoo Cho; Seok Won Hong
Source:: Journal of hazardous materials 2022 v.424 pp. 127398
ISSN:: 0304-3894
Subject:: N-nitrosodimethylamine; carcinogenicity; diethylnitrosamine; ethylation; eutrophication; irradiation; mass spectrometry; metoclopramide; oxygen; pH; photocatalysis; steel; titanium dioxide; ultraviolet radiation; water treatment
Abstract:: ... We investigated the effectiveness of photocatalytic pretreatment (PCP) of precursors in minimizing the formation potentials (FPs) of carcinogenic nitrosamines, including N-nitrosodimethylamine (NDMA), N-nitrosodiethylamine (NDEA), and N-nitrosodiethanolamine (NDELA), during water chloramination. A steel mesh substrate with immobilized TiO₂ was highly efficient at mitigating nitrosamine formation a ...
DOI:: 10.1016/j.jhazmat.2021.127398
: https://doi.org/10.1016/j.jhazmat.2021.127398

84. Chromate enhanced visible light driven TiO2 photocatalytic mechanism on Acid Orange 7 photodegradation

Author:: Yeoung-Sheng Wang; Jyun-Hong Shen; Jao-Jia Horng
Source:: Journal of hazardous materials 2014 v.274 pp. 420-427
ISSN:: 0304-3894
Subject:: aerobic conditions; anaerobic conditions; azo dyes; chromium; decolorization; electron paramagnetic resonance spectroscopy; hydroxyl radicals; ions; irradiation; mineralization; oxygen; photocatalysis; photolysis; redox reactions; titanium dioxide
Abstract:: ... When hexavalent chromium (Cr(VI)) is added to a TiO2 photocatalytic reaction, the decolorization and mineralization efficiencies of azo dyes Acid Orange 7 (AO7) are enhanced even though the mechanism is unclear. This study used 5,5-dimethyl-l-pyrroline-N-oxide (DMPO) as the scavenger and the analysis of Electron Spin Resonance (ESR) to investigate this enhancement effect by observing the hydroxyl ...
DOI:: 10.1016/j.jhazmat.2014.04.042
: https://doi.org/10.1016/j.jhazmat.2014.04.042

85. Co-transport of Pb(II) and oxygen-content-controllable graphene oxide from electron-beam-irradiated graphite in saturated porous media

Author:: Yanji Jiang; Xianqiang Yin; Duo Guan; Tao Jing; Huimin Sun; Nong Wang; Jing Bai
Source:: Journal of hazardous materials 2019 v.375 pp. 297-304
ISSN:: 0304-3894
Subject:: equations; graphene; graphene oxide; ionic strength; ions; irradiation; lead; oxygen; porous media; risk
Abstract:: ... It is essential to investigate the role of the surface oxygen content of graphene oxide (GO) in transport processes. In this study, GO was prepared using flake graphite with different radiation doses. The effects of the flow rate and ionic strength (IS) on the migration and co-transport of GO and Pb(II) ions were investigated via laboratory packed-column experiments. The experimental results showe ...
DOI:: 10.1016/j.jhazmat.2019.05.001
: https://doi.org/10.1016/j.jhazmat.2019.05.001

86. Co-transport of negatively charged nanoparticles in saturated porous media: Impacts of hydrophobicity and surface O-functional groups

Author:: Tianjiao Xia; Yixuan Lin; Shunli Li; Ni Yan; Yao Xie; Mengru He; Xuetao Guo; Lingyan Zhu
Source:: Journal of hazardous materials 2021 v.409 pp. 124477
ISSN:: 0304-3894
Subject:: calcium; graphene oxide; hydrophobicity; ionic strength; irradiation; nanoplastics; polystyrenes; quartz; sand; soil
Abstract:: ... Graphene oxide (GO) and polystyrene nanoplastic (PSNP) are typical carbonaceous nanomaterials which likely co-exist in soil and sediment. Here, we describe the transport of GO, irradiation reduced GO (RGO) and PSNP in saturated quartz sand both in single and binary systems. In the single transport system, the materials exhibited mobility in the order of GO > RGO > PSNP, due to increased hydrophobi ...
DOI:: 10.1016/j.jhazmat.2020.124477
: https://doi.org/10.1016/j.jhazmat.2020.124477

87. Colloidal properties and stability of UV-transformed graphene oxide in aqueous solutions: The role of disorder degree

Author:: Yang Gao; Xuemei Ren; Gang Song; Diyun Chen; Xiaodong Zhang; Changlun Chen
Source:: Journal of hazardous materials 2020 v.382 pp. 121097
ISSN:: 0304-3894
Subject:: aqueous solutions; calcium chloride; coagulation; colloidal properties; disinfection; drinking; environmental fate; graphene oxide; ionic strength; irradiation; light scattering; magnesium chloride; moieties; oxygen; ultraviolet radiation; wastewater treatment
Abstract:: ... Motivated by the use of ultraviolet (UV) radiation in the disinfection processes of drinking and waste water treatment plants, this study explores the colloidal properties and stability of UV irradiated graphene oxide (GO) by using the batch technique and time-resolved dynamic light scattering over a wide range of salt types (NaCl, MgCl2, and CaCl2) and ionic strength relevant to engineered and na ...
DOI:: 10.1016/j.jhazmat.2019.121097
: https://doi.org/10.1016/j.jhazmat.2019.121097

88. Combined photo-Fenton–SBR process for antibiotic wastewater treatment

Author:: Emad S. Elmolla; Malay Chaudhuri
Source:: Journal of hazardous materials 2011 v.192 no.3 pp. 1418-1426
ISSN:: 0304-3894
Subject:: amoxicillin; cloxacillin; iron; irradiation; nitrification; statistical analysis; wastewater; wastewater treatment
Abstract:: ... The study examined combined photo-Fenton–SBR treatment of an antibiotic wastewater containing amoxicillin and cloxacillin. Optimum H₂O₂/COD and H₂O₂/Fe²⁺ molar ratio of the photo-Fenton pretreatment were observed to be 2.5 and 20, respectively. Complete degradation of the antibiotics occurred in one min. The sequencing batch reactor (SBR) was operated at different hydraulic retention times (HRTs) ...
DOI:: 10.1016/j.jhazmat.2011.06.057
: https://doi.org/10.1016/j.jhazmat.2011.06.057

89. Combined ultrasound/ozone degradation of carbazole in APG₁₂₁₄ surfactant solution

Author:: Guodong Ji; Baolong Zhang; Yingchao Wu
Source:: Journal of hazardous materials 2012 v.225-226 no. pp. 1-7
ISSN:: 0304-3894
Subject:: colloids; irradiation; micelles; ozonation; ozone; surfactants; ultrasonic treatment; ultrasonics; zeta potential
Abstract:: ... We examined the effects of power and treatment time on the ultrasonically enhanced ozonation of carbazole dissolved in APG₁₂₁₄ surfactant solutions, including an analysis of the mechanism of OH radical formation, the zeta potential of the colloidal suspension, the influence of ultrasound on micellar morphology, and the degradation kinetics for carbazole and APG₁₂₁₄. A 30min ultrasound treatment at ...
DOI:: 10.1016/j.jhazmat.2012.02.044
: https://doi.org/10.1016/j.jhazmat.2012.02.044

90. Comparative study of chemically synthesized and low temperature bio-inspired Musa acuminata peel extract mediated zinc oxide nanoparticles for enhanced visible-photocatalytic degradation of organic contaminants in wastewater treatment

Author:: F.H. Abdullah; N.H.H. Abu Bakar; M. Abu Bakar
Source:: Journal of hazardous materials 2021 v.406 pp. 124779
ISSN:: 0304-3894
Subject:: Musa acuminata; banana peels; biochemical compounds; biosynthesis; chemical composition; comparative study; crystallites; electron microscopy; equations; gentian violet; irradiation; light; nitrogen; pH; photocatalysis; photocatalysts; photolysis; sorption; surface area; temperature; wastewater treatment; zinc oxide
Abstract:: ... Zinc oxide (ZnO) photocatalysts were successfully synthesized via chemical and green, environmentally-benign methods. The work highlights the valorization of banana peel (BP) waste extract as the reducing and capping agents to produce pure, low temperature, highly crystalline, and effective ZnO nanoparticles with superior photocatalytic activities for the removal of hazardous Basic Blue 9 (BB9), c ...
DOI:: 10.1016/j.jhazmat.2020.124779
: https://doi.org/10.1016/j.jhazmat.2020.124779

91. Comparative study on bisphenols oxidation via TiO2 photocatalytic activation of peroxymonosulfate: Effectiveness, mechanism and pathways

Author:: Jialin Jia; Dongmei Liu; Qiao Wang; Huarui Li; Jiaxin Ni; Fuyi Cui; Jiayu Tian
Source:: Journal of hazardous materials 2022 v.424 pp. 127434
ISSN:: 0304-3894
Subject:: benzene; bisphenol AF; bisphenol F; bisphenol S; comparative study; hydroxylation; irradiation; lighting; oxidation; photocatalysis; titanium dioxide
Abstract:: ... In this work, degradation of bisphenol F (BPF), bisphenol AF (BPAF) and bisphenol S (BPS) by peroxymonosulfate (PMS) with TiO₂ nano-tubes arrays (TiO₂NTAs) under simulated sunlight irradiation was investigated and compared for the first time. All three bisphenols exhibited appreciable degradation following the order of BPS < BPAF < BPF, and acidic conditions were more conducive to their degradatio ...
DOI:: 10.1016/j.jhazmat.2021.127434
: https://doi.org/10.1016/j.jhazmat.2021.127434

92. Comparison of the toxicological impacts of carbamazepine and a mixture of its photodegradation products in Scrobicularia plana

Author:: Ângela Almeida; Vânia Calisto; M. Rosário M. Domingues; Valdemar I. Esteves; Rudolf J. Schneider; Amadeu M.V.M. Soares; Etelvina Figueira; Rosa Freitas
Source:: Journal of hazardous materials 2017 v.323 pp. 220-232
ISSN:: 0304-3894
Subject:: Scrobicularia plana; acute exposure; aquatic environment; catalase; clams; drugs; enzyme activity; irradiation; lighting; lipid peroxidation; mass spectrometry; oxidative stress; photolysis; superoxide dismutase; surface water; toxicity
Abstract:: ... In the aquatic environment, pharmaceutical drugs are submitted to degradation processes, where photodegradation is one of the most important mechanisms affecting the fate, persistence and toxicity of the compounds. Carbamazepine, a widely used antiepileptic, is known to suffer photodegradation in water bodies and generate photoproducts, some of them with higher potential toxicity than the parent c ...
DOI:: 10.1016/j.jhazmat.2016.05.009
: https://doi.org/10.1016/j.jhazmat.2016.05.009

93. Comparison study on photocatalytic oxidation of pharmaceuticals by TiO2-Fe and TiO2-reduced graphene oxide nanocomposites immobilized on optical fibers

Author:: Lu Lin; Huiyao Wang; Wenbin Jiang; Ahmed Radhi Mkaouar; Pei Xu
Source:: Journal of hazardous materials 2017 v.333 pp. 162-168
ISSN:: 0304-3894
Subject:: aqueous solutions; energy; graphene oxide; ibuprofen; ions; iron; irradiation; nanocomposites; optical fibers; oxidation; photocatalysis; photocatalysts; photoluminescence; polymers; sulfamethoxazole; titanium dioxide; ultraviolet radiation
Abstract:: ... Incorporating reduced graphene oxide (rGO) or Fe³⁺ ions in TiO2 photocatalyst could enhance photocatalytic degradation of organic contaminants in aqueous solutions. This study characterized the photocatalytic activities of TiO2-Fe and TiO2-rGO nanocomposites immobilized on optical fibers synthesized by polymer assisted hydrothermal deposition method. The photocatalysts presented a mixture phase of ...
DOI:: 10.1016/j.jhazmat.2017.02.044
: https://doi.org/10.1016/j.jhazmat.2017.02.044

94. Complete mineralization of phenolic compounds in visible-light-driven photocatalytic ozonation with single-crystal WO3 nanosheets: Performance and mechanism investigation

Author:: Haidong Yu; Mingxi Wang; Jiabao Yan; Hui Dang; Hui Zhu; Yuejin Liu; Meicheng Wen; Guisheng Li; Ling Wu
Source:: Journal of hazardous materials 2022 v.433 pp. 128811
ISSN:: 0304-3894
Subject:: 2-chlorophenol; carbon dioxide; electrochemistry; irradiation; light; microstructure; mineralization; nanosheets; oxidation; ozonation; phenol; photocatalysis; photocatalysts; tungsten oxide; wastewater
Abstract:: ... Complete mineralization of phenolic compounds into CO₂ and H₂O is desirable for removing them in wastewater, but it is challenging due to the generated recalcitrant intermediates, which requires highly effective advanced oxidation process with proper catalysts. Herein, we found that single-crystal WO₃ nanosheets (NSs)-based photocatalytic ozonation (PCO) can realize complete mineralization of phen ...
DOI:: 10.1016/j.jhazmat.2022.128811
: https://doi.org/10.1016/j.jhazmat.2022.128811

95. Complete solar-driven dual-photoelectrode fuel cell for water purification and power generation in the presence of peroxymonosulfate

Author:: Xuefeng Liu; Shijie You; Nanqi Ren; Hao Zhou; Jinna Zhang
Source:: Journal of hazardous materials 2021 v.416 pp. 125682
ISSN:: 0304-3894
Subject:: 4-chlorophenol; cathodes; fuel cells; hydrogen; irradiation; lighting; power generation; thermodynamics; wastewater treatment; water purification
Abstract:: ... This study reports the development of complete solar-driven dual-photoelectrode fuel cell (PFC) based on WO₃ photoanode and Cu₂O photocathode with peroxymonosulfate (PMS) serving as cathodic electron acceptor. As indicated by photoelectrochemical measurements, the PMS was able to improve thermodynamic properties of photocathode, achieving an increased open circuit potential from 0.42 V to 0.65 V v ...
DOI:: 10.1016/j.jhazmat.2021.125682
: https://doi.org/10.1016/j.jhazmat.2021.125682

96. Confirmation of hydroxyl radicals (•OH) generated in the presence of TiO2 supported on AC under microwave irradiation

Author:: Zhaohong Zhang; Fengyang Yu; Lirong Huang; Jianaerguli Jiatieli; Yuanyuan Li; Lijun Song; Ning Yu; Dionysios D. Dionysiou
Source:: Journal of hazardous materials 2014 v.278 pp. 152-157
ISSN:: 0304-3894
Subject:: activated carbon; ascorbic acid; free radical scavengers; hydroxyl radicals; irradiation; mannitol; microwave radiation; oxidation; pollutants; titanium dioxide
Abstract:: ... In order to study the degradation mechanism of technology of microwave (MW) combined with TiO2 supported on activated carbon (TiO2/AC), the reactive oxygen species (ROS) was explored through oxidation of 1,5-diphenyl carbazide (DPCI) to 1,5-diphenyl carbazone (DPCO). Furthermore, 2,6-di-tert-butyl-4-methylphenol (BHT), Mannitol (MT) and Vitamin C (VC) were used as radical scavengers to confirm the ...
DOI:: 10.1016/j.jhazmat.2014.05.064
: https://doi.org/10.1016/j.jhazmat.2014.05.064

97. Constructing a new Z-scheme multi-heterojunction photocataslyts Ag-AgI/BiOI-Bi2O3 with enhanced photocatalytic activity

Author:: Qishe Yan; Xin Xie; Yonggang Liu; Shenbo Wang; Menghan Zhang; Yongyang Chen; Yushan Si
Source:: Journal of hazardous materials 2019 v.371 pp. 304-315
ISSN:: 0304-3894
Subject:: X-ray diffraction; X-ray photoelectron spectroscopy; bismuth; electron paramagnetic resonance spectroscopy; energy-dispersive X-ray analysis; free radicals; iodides; irradiation; methyl orange; models; nanoparticles; photocatalysis; scanning electron microscopy; silver; superoxide anion; transmission electron microscopy
Abstract:: ... The series Ag-AgI/BiOI-Bi2O3 visible-light-driven photocataslyts were successfully synthesized by solvothermal method. The as-synthesized samples were systematically characterized by XRD, SEM, TEM, EDS, BET, XPS, FR-IR, UV–vis DRS, photoelectrochemical measurements and EPR. The formation mechanism of the new composite photocataslyts was investigated and the simulate formation process had been illu ...
DOI:: 10.1016/j.jhazmat.2019.03.031
: https://doi.org/10.1016/j.jhazmat.2019.03.031

98. Construction of Ni-doped SnO2-SnS2 heterojunctions with synergistic effect for enhanced photodegradation activity

Author:: Dayong Chen; Shoushuang Huang; Ruting Huang; Qian Zhang; Thanh-Tung Le; Erbo Cheng; Rong Yue; Zhangjun Hu; Zhiwen Chen
Source:: Journal of hazardous materials 2019 v.368 pp. 204-213
ISSN:: 0304-3894
Subject:: active sites; air; electrons; irradiation; lighting; methyl orange; microparticles; nickel; oxidation; photocatalysis; photolysis; porosity; quantum dots; synergism; tin dioxide
Abstract:: ... Construction of heterostructures with proper band alignment and effective transport and separation of photogenerated charges is highly expected for photocatalysis. In this work, Ni-doped SnO2-SnS2 heterostructures (NiSnSO) are simply prepared by thermal oxidation of Ni-doped hierarchical SnS2 microspheres in the air. When applied for the photodegradation of organic contaminants, these NiSnSO exhib ...
DOI:: 10.1016/j.jhazmat.2019.01.009
: https://doi.org/10.1016/j.jhazmat.2019.01.009

99. Construction of S-scheme Bi2WO6/g-C3N4 heterostructure nanosheets with enhanced visible-light photocatalytic degradation for ammonium dinitramide

Author:: Xiaoyan Lian; Wenhua Xue; Shuai Dong; Enzhou Liu; Hui Li; Kangzhen Xu
Source:: Journal of hazardous materials 2021 v.412 pp. 125217
ISSN:: 0304-3894
Subject:: ammonium; catalysts; hot water treatment; hydrogen peroxide; irradiation; light; nanosheets; nitrates; oxidants; pH; photocatalysis; remediation; temperature
Abstract:: ... Photocatalysis technology is considered as a promising environmental remediation strategy. Herein, photocatalytic degradation of ammonium dinitramide (ADN, main component of propellant) was investigated over Bi₂WO₆/g-C₃N₄ (BWO/CN) heterostructure nanosheets prepared by a one-step in-situ hydrothermal method. The operating conditions including ADN initial concentration, catalyst dosage, initial pH, ...
DOI:: 10.1016/j.jhazmat.2021.125217
: https://doi.org/10.1016/j.jhazmat.2021.125217

100. Construction of carbon-doped supramolecule-based g-C3N4/TiO2 composites for removal of diclofenac and carbamazepine: A comparative study of operating parameters, mechanisms, degradation pathways

Author:: Zhongzheng Hu; Xuewei Cai; Zirun Wang; Shan Li; Zhaowei Wang; Xiaoyun Xie
Source:: Journal of hazardous materials 2019 v.380 pp. 120812
ISSN:: 0304-3894
Subject:: X-ray photoelectron spectroscopy; anions; carbon; carbon nitride; chlorides; comparative study; diclofenac; fluorescence emission spectroscopy; irradiation; lighting; mass spectrometry; nanoparticles; nitrates; organic matter; pH; photocatalysis; photocatalysts; photolysis; scanning electron microscopy; sulfates; superoxide anion; titanium dioxide
Abstract:: ... An eco-friendly 2D heterojunction photocatalyst composites (BCCNT) consisting of carbon-doped supramolecule-based g-C3N4 (BCCN) layers and TiO2 nanoparticles has been fabricated via an in-situ method. Based on the SEM and XPS results affirmed that the coaction of doped carbon and supramolecule precursors lead to the different morphology of pure g-C3N4, C-doped g-C3N4 have improved the photodegrada ...
DOI:: 10.1016/j.jhazmat.2019.120812
: https://doi.org/10.1016/j.jhazmat.2019.120812

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1. 1D/2D constructed Bi2S3/Bi2O2CO3 direct Z-Scheme heterojunction: A versatile photocatalytic material for boosted photodegradation, photoreduction and photoelectrochemical detection of water-based contaminants

2. 3D printed photoreactor with immobilized graphitic carbon nitride: A sustainable platform for solar water purification

3. A bamboo-inspired hierarchical nanoarchitecture of Ag/CuO/TiO2 nanotube array for highly photocatalytic degradation of 2,4-dinitrophenol

4. A bioinspired cercosporin/polymethylmethacrylate photocatalyst with high efficiency for decontamination of pharmaceuticals and pathogens

5. A comparative study of disinfection efficiency and regrowth control of microorganism in secondary wastewater effluent using UV, ozone, and ionizing irradiation process

6. A comprehensive study on photocatalytic activity of supported Ni/Pb sulfide and oxide systems onto natural zeolite nanoparticles

7. A heteropoly blue as environmental friendly material: An excellent heterogeneous Fenton-like catalyst and flocculent

8. A mechanistic study on the potential of quinolinium salts as photocatalysts for the abatement of chlorinated pollutants

9. A new mathematical model for irradiance field prediction of upper-room ultraviolet germicidal systems

10. A novel Au-SnO2-rGO ternary nanoheterojunction catalyst for UV-LED induced photocatalytic degradation of clothianidin: Identification of reactive intermediates, degradation pathway and in-depth mechanistic insight

11. A novel L-Histidine (C, N) codoped-TiO2-CdS nanocomposite for efficient visible photo-degradation of recalcitrant compounds from wastewater

12. A novel Sm doped Cr2O3 sesquioxide-decorated MWCNTs heterostructured Fenton-like with sonophotocatalytic activities under visible light irradiation

13. A novel and high-performance double Z-scheme photocatalyst ZnO-SnO2-Zn2SnO4 for effective removal of the biological toxicity of antibiotics

14. A novel hollow-sphere cyclodextrin nanoreactor for the enhanced removal of bisphenol A under visible irradiation

15. A novel immobilized Z-scheme P3HT/α-Fe2O3 photocatalyst array: Study on the excellent photocatalytic performance and photocatalytic mechanism

16. A novel magnetic MIL-101(Fe)/TiO2 composite for photo degradation of tetracycline under solar light

17. A novel method for photo-oxidative degradation of diatrizoate in water via electromagnetic induction electrodeless lamp

18. A novel route to graphite-like carbon supporting SnO2 with high electron transfer and photocatalytic activity

19. A novel synthesis of oleophylic Fe2O3/polystyrene fibers by γ-Ray irradiation for the enhanced photocatalysis of 4-chlorophenol and 4-nitrophenol degradation

20. A novel tubular up-flow magnetic film photocatalytic system optimized by main factors control for efficient removal of chlorophenols wastewater

21. A novel upper-room UVC-LED irradiation system for disinfection of indoor bioaerosols under different operating and airflow conditions

22. A pilot study on the disinfection efficacy of localized UV on the flushing-generated spread of pathogens

23. A review of advances in multifunctional XTiO3 perovskite-type oxides as piezo-photocatalysts for environmental remediation and energy production

24. A simple method to prepare g-C3N4-TiO2/waste zeolites as visible-light-responsive photocatalytic coatings for degradation of indoor formaldehyde

25. A simple post-synthesis conversion approach to Zn(OH)F and the effects of fluorine and hydroxyl on the photodegradation properties of dye wastewater

26. A study on microwave oxidation of landfill leachate—Contributions of microwave-specific effects

27. Abiotic and biotic degradation of five aromatic organosilicon compounds in aqueous media—Structure degradability relationships

28. Accelerated degradation of sulfamethazine in water by VUV/UV photo-Fenton process: Impact of sulfamethazine concentration on reaction mechanism

29. Accelerated photoelectron transmission by carboxymethyl β-cyclodextrin for organic contaminants removal: An alternative to noble metal catalyst

30. Activation of peroxydisulfate via photothermal synergistic strategy for wastewater treatment: Efficiency and mechanism

31. Activation of peroxymonosulfate by Fe doped g-C3N4 /graphene under visible light irradiation for Trimethoprim degradation

32. Activation of peroxymonosulfate by graphitic carbon nitride loaded on activated carbon for organic pollutants degradation

33. Activation of persulfate by irradiated laterite for removal of fluoroquinolones in multi-component systems

34. Adsorption and enhanced photocatalytic activity of the {0001} faceted Sm-doped ZnIn2S4 microspheres

35. Adsorption and photocatalytic and photosensitised bleaching of acid orange 7 on multilayer mesoporous films of TiO₂

36. Adsorption and photocatalytic oxidation of formaldehyde on a clay-TiO₂ composite

37. Adsorption–photodegradation of humic acid in water by using ZnO coupled TiO2/bamboo charcoal under visible light irradiation

38. Adsorptive removal and photocatalytic decomposition of cationic dyes on niobium oxide with deformed orthorhombic structure

39. Adsorptive separation and photocatalytic degradation of methylene blue dye on titanate nanotube powders prepared by hydrothermal process using metal Ti particles as a precursor

40. Advances in application of ultraviolet irradiation for biofilm control in water and wastewater infrastructure

41. Ag loaded WO3 nanoplates for efficient photocatalytic degradation of sulfanilamide and their bactericidal effect under visible light irradiation

42. Ag-bridged Ag2O nanowire network/TiO2 nanotube array p–n heterojunction as a highly efficient and stable visible light photocatalyst

43. Ag2CO3/UiO-66(Zr) composite with enhanced visible-light promoted photocatalytic activity for dye degradation

44. Ag3PO4/graphene-oxide composite with remarkably enhanced visible-light-driven photocatalytic activity toward dyes in water

45. AgI modified covalent organic frameworks for effective bacterial disinfection and organic pollutant degradation under visible light irradiation

46. AgI/TiO2 nanobelts monolithic catalyst with enhanced visible light photocatalytic activity

47. All-solid-state WO3/TQDs/In2S3 Z-scheme heterojunctions bridged by Ti3C2 quantum dots for efficient removal of hexavalent chromium and bisphenol A

48. All-solid-state Z-scheme WO3 nanorod/ZnIn2S4 composite photocatalysts for the effective degradation of nitenpyram under visible light irradiation

49. Ameliorative photocatalytic dye degradation of hydrothermally synthesized bimetallic Ag-Sn hybrid nanocomposite treated upon domestic wastewater under visible light irradiation

50. Amino-functionalized MIL-88B as heterogeneous photo-Fenton catalysts for enhancing tris-(2-chloroisopropyl) phosphate (TCPP) degradation: Dual excitation pathways accelerate the conversion of [tbnd]FeIII to [tbnd]FeII under visible light irradiation

51. Ammonia-modified graphene sheets decorated with magnetic Fe3O4 nanoparticles for the photocatalytic and photo-Fenton degradation of phenolic compounds under sunlight irradiation

52. Amoxicillin photodegradation under visible light catalyzed by metal-free carbon nitride: An investigation of the influence of the structural defects

53. An efficient broad spectrum-driven carbon and oxygen co-doped g-C3N4 for the photodegradation of endocrine disrupting: Mechanism, degradation pathway, DFT calculation and toluene selective oxidation

54. An efficient photo Fenton system for in-situ evolution of H2O2via defective iron-based metal organic framework@ZnIn2S4 core-shell Z-scheme heterojunction nanoreactor

55. An outer membrane photosensitized Geobacter sulfurreducens-CdS biohybrid for redox transformation of Cr(VI) and tetracycline

56. Anionic polyacrylamide-assisted construction of thin 2D-2D WO3/g-C3N4 Step-scheme heterojunction for enhanced tetracycline degradation under visible light irradiation

57. Anodic titanium oxide as immobilized photocatalyst in UV or visible light devices

58. Antibacterial properties and mechanism of biopolymer-based films functionalized by CuO/ZnO nanoparticles against Escherichia coli and Staphylococcus aureus

59. Antimicrobial and antibiofilm efficacy of self-cleaning surfaces functionalized by TiO2 photocatalytic nanoparticles against Staphylococcus aureus and Pseudomonas putida

60. Antimicrobial mechanisms of g-C3N4 nanosheets against the oomycetes Phytophthora capsici: Disrupting metabolism and membrane structures and inhibiting vegetative and reproductive growth

61. Antimicrobial surfaces with self-cleaning properties functionalized by photocatalytic ZnO electrosprayed coatings

62. Applicability of light sources and the inner filter effect in UV/acetylacetone and UV/H2O2 processes

63. Aqueous arsenite removal by simultaneous ultraviolet photocatalytic oxidation-coagulation of titanium sulfate

64. Assessment of individual and mixed alkali activated binders for solidification of a nuclear grade organic resin loaded with 134Cs, 60Co and 152+154Eu radionuclides

65. Augmentation of microbial fuel cell and photocatalytic polishing technique for the treatment of hazardous dimethyl phthalate containing wastewater

66. Benzothiadiazole functionalized Co-doped MIL-53-NH2 with electron deficient units for enhanced photocatalytic degradation of bisphenol A and ofloxacin under visible light

67. Bifunctional 2D/2D g-C3N4/BiO2−x nanosheets heterojunction for bacterial disinfection mechanisms under visible and near-infrared light irradiation

68. Bimetallic Ag-Zn-BTC/GO composite as highly efficient photocatalyst in the photocatalytic degradation of reactive yellow 145 dye in water

69. Biotemplated preparation of CdS nanoparticles/bacterial cellulose hybrid nanofibers for photocatalysis application

70. Boosting photocatalytic degradation of tetracycline under visible light over hierarchical carbon nitride microrods with carbon vacancies