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You searched for: Journal name Journal of hazardous materials Remove constraint Journal name: Journal of hazardous materials Publication year rev 7981-2019 Remove constraint Publication year rev: 7981-2019 Subject term irradiation Remove constraint Subject term: irradiation
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1. 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

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. 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

11. 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

12. Construction of novel Z-scheme Ag/ZnFe2O4/Ag/BiTa1-xVxO4 system with enhanced electron transfer capacity for visible light photocatalytic degradation of sulfanilamide

Author:
Ruxue Wang; Jianhua Tang; Xingyuan Zhang; Di Wang; Xuan Wang; Shuang Xue; Zhaohong Zhang; Dionysios D. Dionysiou
Source:
Journal of hazardous materials 2019 v.375 pp. 161-173
ISSN:
0304-3894
Subject:
antibiotics; electron transfer; hydroxyl radicals; ions; iron; irradiation; light; photocatalysis; photolysis; silver; solar radiation; sulfanilamide; superoxide anion
Abstract:
... A novel Z-scheme system, Ag/ZnFe2O4/Ag/BiTa1-xVxO4 with enhanced electron transfer capacity was constructed for degrading sulfanilamide (SAM) using solar light. The photocatalytic activity of Ag/ZnFe2O4/Ag/BiTa1-xVxO4 was investigated. The effects of the mass ratio (ZnFe2O4:BiTaO4), doped V dose, Ag wt.% content, and irradiation time on the catalytic performance were evaluated. The reasonable mech ...
DOI:
10.1016/j.jhazmat.2019.04.081

13. Core-shell structured Fe3O4@GO@MIL-100(Fe) magnetic nanoparticles as heterogeneous photo-Fenton catalyst for 2,4-dichlorophenol degradation under visible light

Author:
Qingjiao Gong; Yun Liu; Zhi Dang
Source:
Journal of hazardous materials 2019 v.371 pp. 677-686
ISSN:
0304-3894
Subject:
2,4-dichlorophenol; Raman spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; catalysts; catalytic activity; electric current; electrons; hydrogen peroxide; hysteresis; iron; iron oxides; irradiation; magnetic fields; nanoparticles; pH; photoluminescence; scanning electron microscopy; transmission electron microscopy
Abstract:
... A novel core-shell structured Fe3O4@GO@MIL-100(Fe) magnetic catalyst was successfully synthesized and used as heterogeneous photo-Fenton catalyst for 2,4-dichlorophenl (2,4-DCP) degradation. The catalyst was fully characterized by X-ray diffraction pattern (XRD), Raman spectroscopy, Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), ...
DOI:
10.1016/j.jhazmat.2019.03.019

14. Degradation of carbamazepine by vacuum-UV oxidation process: Kinetics modeling and energy efficiency

Author:
Shumin Zhu; Bingzhi Dong; Yangtao Wu; Lingjun Bu; Shiqing Zhou
Source:
Journal of hazardous materials 2019 v.368 pp. 178-185
ISSN:
0304-3894
Subject:
ecotoxicology; electric power; energy efficiency; hydroxyl radicals; irradiation; kinetics; models; organic matter; oxidation; toxicity; ultraviolet radiation
Abstract:
... Vaccum-ultraviolet (VUV) is effective for elimination of organic contaminants in aqueous environment and degradation of carbamazepine (CBZ) by VUV irradiation was systematically investigated in this study. A dynamic kinetic model was developed to simulate the destruction of CBZ that is mainly initiated by hydroxyl radicals (HO). The second-order rate constant of the reaction between CBZ and HO was ...
DOI:
10.1016/j.jhazmat.2019.01.043

15. Degradation of clofibric acid by UV, O3 and UV/O3 processes: Performance comparison and degradation pathways

Author:
Yan Wang; Huiyuan Li; Pan Yi; Hui Zhang
Source:
Journal of hazardous materials 2019 v.379 pp. 120771
ISSN:
0304-3894
Subject:
Daphnia magna; acute toxicity; clofibric acid; free radicals; irradiation; liquid chromatography; mass spectrometry; mineralization; oxidation; ozonation; ozone; photolysis; ultraviolet radiation
Abstract:
... In this study, ultraviolet (UV) irradiation, ozonation (O3) and their combination (UV/O3) were used to decompose clofibric acid (CA). The results show that UV system exhibited a very high CA removal rate (0.20 min−1) but the lowest mineralization (14.8%) accompanied by the formation of more toxic products. Ozonation achieved a much lower removal rate (0.05 min−1) but a higher mineralization effici ...
DOI:
10.1016/j.jhazmat.2019.120771

16. Detoxification of municipal solid waste incinerator (MSWI) fly ash by single-mode microwave (MW) irradiation: Addition of urea on the degradation of Dioxin and mechanism

Author:
Dongyang Deng; Junqin Qiao; Mingqing Liu; Dorota Kołodyńska; Manwen Zhang; Dionysios D. Dionysiou; Yongming Ju; Jun Ma; Moo-been Chang
Source:
Journal of hazardous materials 2019 v.369 pp. 279-289
ISSN:
0304-3894
Subject:
dibenzofuran; fly ash; heavy metals; irradiation; leaching; municipal solid waste; polychlorinated dibenzodioxins; polychlorinated dibenzofurans; pyrolysis; silicon carbide; temperature; toxicity; urea
Abstract:
... The detoxification of municipal solid waste incinerator (MSWI) fly ash dioxins urgently requires an effective treatment technology. In this study, we adopted a single-mode microwave (MW)-based pyrolysis to treat MSWI fly ash under N2 atmosphere and further elucidated the main influencing factors, including the chemical inhibitor, for dioxin control. The results show that (1) the detoxification pro ...
DOI:
10.1016/j.jhazmat.2019.01.001

17. Dual responsive magnetic Au@Ni nanostructures loaded reduced graphene oxide sheets for colorimetric detection and photocatalytic degradation of toxic phenolic compounds

Author:
Gitashree Darabdhara; Manash R. Das
Source:
Journal of hazardous materials 2019 v.368 pp. 365-377
ISSN:
0304-3894
Subject:
2-chlorophenol; colorimetry; detection limit; gold; graphene oxide; irradiation; magnetism; nanocomposites; nanogold; nanoparticles; nickel; nitrophenols; oxidation; peroxidase; photocatalysis; pollutants; solar radiation; toxicity
Abstract:
... We report the colorimetric detection and photocatalytic degradation of toxic phenolic compounds using Au@Ni loaded reduced graphene oxide (rGO) nanostructures. Core-shell nanoparticles of Au and Ni are successfully designed on rGO with size <8 nm by a solvothermal route which demonstrate excellent enzyme mimic behaviour towards the oxidation of 3,3ʹ,5,5ʹ tetramethylbenzidine (TMB), a peroxidase su ...
DOI:
10.1016/j.jhazmat.2019.01.010

18. Efficient utilization of photogenerated electrons and holes for photocatalytic redox reactions using visible light-driven Au/ZnIn2S4 hybrid

Author:
Taotao Zhu; Xiangju Ye; Qiaoqiao Zhang; Zhenzhen Hui; Xuchun Wang; Shifu Chen
Source:
Journal of hazardous materials 2019 v.367 pp. 277-285
ISSN:
0304-3894
Subject:
benzaldehyde; benzyl alcohol; carbon dioxide; electrons; gold; hydrogen; hydrogen production; irradiation; nanosheets; nitrogen fixation; oxidation; photocatalysis; photocatalysts; protons
Abstract:
... In this study, a new photocatalytic reaction system for simultaneous selective oxidation of aromatic alcohols to corresponding aldehydes and reduction of protons to H2 has been developed. The results reveal that compared with pure ZnIn2S4, the ZnIn2S4 photocatalysts modified with noble metal gold (Au/ZnIn2S4) significantly promote the photocatalytic performance. Among them, the 0.5% Au/ZnIn2S4 nan ...
DOI:
10.1016/j.jhazmat.2018.12.093

19. Enhanced photocatalytic properties of defect-rich α-MoO3 nanoflakes by cavitation and pitting effect

Author:
Binjie Zheng; Zegao Wang; Xinqiang Wang; Yuanfu Chen
Source:
Journal of hazardous materials 2019 v.378 pp. 120753
ISSN:
0304-3894
Subject:
adsorption; crystals; engineering; irradiation; light; photocatalysis; photocatalysts; rhodamines; semiconductors; ultrasonics
Abstract:
... For the first time, we present a novel, facile and eco-friendly engineering defect method, to produce defect-rich α-MoO3 (dr-MoO3) nanoflakes with abundant exposed reactive edge sites, by applying cavitation and pitting effect of high-power ultrasonic tip to inch-size α-MoO3 single crystals. The as-prepared dr-MoO3 nanoflakes deliver excellent photocatalytic activity for degradation of Rhodamine B ...
DOI:
10.1016/j.jhazmat.2019.120753

20. Enhanced visible-light activation of persulfate by Ti3+ self-doped TiO2/graphene nanocomposite for the rapid and efficient degradation of micropollutants in water

Author:
Lei Yang; Lu Xu; Xue Bai; Pengkang Jin
Source:
Journal of hazardous materials 2019 v.365 pp. 107-117
ISSN:
0304-3894
Subject:
acetaminophen; anions; catalysts; electron paramagnetic resonance spectroscopy; free radicals; graphene oxide; hydroxyl radicals; irradiation; nanocomposites; oxidation; oxygen; pH; phenol; pollutants; pollution control; sulfamethoxazole; sulfates; titanium; titanium dioxide
Abstract:
... In this study, a novel TiO₂₋ₓ/rGO-PS-Vis process was developed, which utilizes the TiO₂₋ₓ/rGO (Ti³⁺ and oxygen vacancies self-doped TiO₂ coupled with reduced graphene oxide) nanocomposite as a promising and efficient activator of persulfate (PS) for the enhanced oxidation of micropollutants under visible -light irradiation. TiO₂₋ₓ/rGO exhibited a significantly high activity for PS activation to pr ...
DOI:
10.1016/j.jhazmat.2018.10.090

21. Enhancing the photo-corrosion resistance of ZnO nanowire photocatalysts

Author:
Caitlin M. Taylor; Anyela Ramirez-Canon; Jannis Wenk; Davide Mattia
Source:
Journal of hazardous materials 2019 v.378 pp. 120799
ISSN:
0304-3894
Subject:
annealing; dissolved oxygen; irradiation; mass transfer; nanowires; oxygen; phenol; photocatalysis; photocatalysts; photolysis; pollutants; titanium dioxide; ultraviolet radiation; zinc oxide
Abstract:
... Zinc oxide (ZnO) displays superior properties as a photocatalyst, compared to the more widely used TiO2. However, widespread application of ZnO is hampered by its high photo-corrosion in aqueous environments under UV irradiation. A systematic investigation of the effect of (i) post-production annealing, (ii) dissolved oxygen levels during photocatalysis and (iii) reactor configuration on the stabi ...
DOI:
10.1016/j.jhazmat.2019.120799

22. Fabrication of nanocomposite photocatalyst CuBi2O4/Bi3ClO4 for removal of acid brown 14 as water pollutant under visible light irradiation

Author:
Hassan Najafian; Faranak Manteghi; Farshad Beshkar; Masoud Salavati-Niasari
Source:
Journal of hazardous materials 2019 v.361 pp. 210-220
ISSN:
0304-3894
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; acids; azo dyes; bismuth; copper; elemental composition; energy-dispersive X-ray analysis; free radicals; gelation; gelling agents; irradiation; light; nanocomposites; nanomaterials; pH; particle size distribution; photocatalysis; photocatalysts; photolysis; pollutants; pollution control; scanning electron microscopy; sol-gel processing; superoxide anion; transmission electron microscopy; ultraviolet-visible spectroscopy
Abstract:
... In the present study, CuBi2O4/Bi3ClO4 nanocomposites have been fabricated via an improved Pechini sol-gel process using the mixtures of various gelling agents and polybasic acids. This work shows that by controlling the reaction conditions such as kind of polybasic acids, gelling agents, pH and mole ratio of polybasic acid to total metals, the CuBi2O4/Bi3ClO4 nanocomposites with ultrafine sphere-l ...
DOI:
10.1016/j.jhazmat.2018.08.092

23. Formation of dioxins from triclosan with active chlorine: A potential risk assessment

Author:
Jian-lin Wu; Fenfen Ji; Hongna Zhang; Chuanqin Hu; Ming Hung Wong; Di Hu; Zongwei Cai
Source:
Journal of hazardous materials 2019 v.367 pp. 128-136
ISSN:
0304-3894
Subject:
anti-infective agents; carcinogenesis; chlorine; colon; dioxins; gas chromatography-mass spectrometry; irradiation; liver cirrhosis; mice; neoplasms; risk assessment; seawater; toxicity; triclosan; ultraviolet radiation; water pollution
Abstract:
... Triclosan, a widely used antimicrobial agent, can increase colitis-associated colon tumorigenesis, and induce liver fibrosis and cancer in mice through mechanisms which may be relevant in humans. In this study, an analytical method using gas chromatography-mass spectrometry (GC–MS) and high resolution gas chromatography-high resolution mass spectrometry (HRGC-HRMS) was developed to measure dioxins ...
DOI:
10.1016/j.jhazmat.2018.12.088
PubMed:
30594711
PubMed Central:
PMC7115804

24. Formation of environmentally persistent free radicals during the transformation of anthracene in different soils: Roles of soil characteristics and ambient conditions

Author:
Hanzhong Jia; Song Zhao; Yafang Shi; Xiaoyun Fan; Tiecheng Wang
Source:
Journal of hazardous materials 2019 v.362 pp. 214-223
ISSN:
0304-3894
Subject:
Chernozems; anthracenes; environmental factors; ferric oxide; free radicals; iron; iron oxyhydroxides; irradiation; manganese dioxide; organic carbon; polluted soils; risk; soil minerals; soil properties
Abstract:
... Transformation of PAHs, i.e., anthracene, and production of environmentally persistent free radicals (EPFRs) on seven types of representative soils were investigated, focusing on the influences of soil characteristics and ambient conditions on these reactions. The transformation rate of anthracene exhibits the order of red earth > yellow earth > latosol ∼ fluvo-aquic soil > brown earth > chernozem ...
DOI:
10.1016/j.jhazmat.2018.08.056

25. Graphitic carbon nitride (g-C3N4) nanosheets functionalized composite membrane with self-cleaning and antibacterial performance

Author:
Rui Li; Yuling Ren; Peixia Zhao; Jing Wang; Jindun Liu; Yatao Zhang
Source:
Journal of hazardous materials 2019 v.365 pp. 606-614
ISSN:
0304-3894
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; antibacterial properties; asymmetric membranes; atomic force microscopy; carbon nitride; color; dyes; fouling; graphene; irradiation; longevity; nanosheets; permeability; photocatalysis; polyacrylonitrile; ultrasonic treatment; water treatment
Abstract:
... Membrane fouling significantly impedes membrane performance and thus short lifespan of the membrane. Membranes that functionalized with photocatalytic activity are deemed as an effective and novel approach to settle membrane fouling. The membranes with self-cleaning and antibacterial performance were fabricated via facilely filtering g-C₃N₄ nanosheets onto polyacrylonitrile (PAN) porous substrates ...
DOI:
10.1016/j.jhazmat.2018.11.033

26. Hierarchically structured ternary heterojunctions based on Ce3+/ Ce4+ modified Fe3O4 nanoparticles anchored onto graphene oxide sheets as magnetic visible-light-active photocatalysts for decontamination of oxytetracycline

Author:
Ramin Hassandoost; Shima Rahim Pouran; Alireza Khataee; Yasin Orooji; Sang Woo Joo
Source:
Journal of hazardous materials 2019 v.376 pp. 200-211
ISSN:
0304-3894
Subject:
blood platelets; byproducts; cerium; crystal structure; decontamination; energy; graphene oxide; ions; iron; irradiation; light; magnetism; magnetite; mineralization; moieties; nanoparticles; oxidation; oxytetracycline; photocatalysis; photocatalysts; photolysis; surface area; wastewater
Abstract:
... The main prerequisite of an active visible-light-driven photocatalyst is to effectively utilize the visible light to induce electron-hole (e−/h+) pairs of expanded lifetime. To this end, for the first time, the ternary heterojunctions of CeO2/Fe3O4 /Graphene oxide and Ce3+/ Fe3O4 /Graphene oxide (CeO2/Fe3O4/GO and Fe2.8Ce0.2O4/GO) were prepared via facile ultrasonic-assisted procedures and employe ...
DOI:
10.1016/j.jhazmat.2019.05.035

27. Highly efficient and stable p-LaFeO3/n-ZnO heterojunction photocatalyst for phenol degradation under visible light irradiation

Author:
Ting Ren; Zehua Jin; Jun Yang; Ruisheng Hu; Fu Zhao; Xiaojiao Gao; Chunxiao Zhao
Source:
Journal of hazardous materials 2019 v.377 pp. 195-205
ISSN:
0304-3894
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; chemical oxygen demand; free radicals; high performance liquid chromatography; hot water treatment; hydroxyl radicals; irradiation; light; optical properties; oxidation; phenol; photocatalysis; photocatalysts; scanning electron microscopy; transmission electron microscopy
Abstract:
... A series of catalysts with p-LaFeO3/n-ZnO heterostructure were designed and prepared by hydrothermal method. The structure, surface topographies, optical properties and interfacial interactions of these photocatalysts were analyzed by XRD, SEM, TEM, PL, Uv–vis DRS, XPS, COD, TOC etc., indicating that p-n heterojunction formed at the interface between p-LaFeO3 and n-ZnO, which enhanced the photocat ...
DOI:
10.1016/j.jhazmat.2019.05.070

28. Highly efficient degradation of 2,4-dichlorophenol over CeO2/g-C3N4 composites under visible-light irradiation: Detailed reaction pathway and mechanism

Author:
Muhammad Humayun; Zhewen Hu; Abbas Khan; Wei Cheng; Yang Yuan; Zhiping Zheng; Qiuyun Fu; Wei Luo
Source:
Journal of hazardous materials 2019 v.364 pp. 635-644
ISSN:
0304-3894
Subject:
2,4-dichlorophenol; carbon dioxide; carbon nitride; fluorescence; hydroxyl radicals; irradiation; liquid chromatography; nanocomposites; oxidants; photocatalysis; photocatalysts; photoluminescence; photolysis; reaction mechanisms; remediation; tandem mass spectrometry; trapping
Abstract:
... Herein, we report for the first time the highly efficient degradation of 2,4-dichlorophenol (2,4-DCP) over CeO₂/g-C₃N₄ composites (xCeO/CN) prepared via wet-chemical solution method. It is shown that the resultant nanocomposites with a proper mass ratio percentage (15%) of CeO coupled exhibit greatly enhanced visible-light activity for 2,4-dichlorophenol (2,4-DCP) degradation compared to the bare ...
DOI:
10.1016/j.jhazmat.2018.10.088

29. Impacts on antibiotic-resistant bacteria and their horizontal gene transfer by graphene-based TiO2&Ag composite photocatalysts under solar irradiation

Author:
Mei-Ting Guo; Xiao-Bo Tian
Source:
Journal of hazardous materials 2019 v.380 pp. 120877
ISSN:
0304-3894
Subject:
antibiotic resistance; antibiotic resistance genes; bacteria; chloramphenicol; graphene; graphene oxide; horizontal gene transfer; irradiation; lighting; nanocomposites; nanosilver; photocatalysis; photocatalysts; pollutants; pollution; risk assessment; silver; solar radiation; tetracycline; titanium dioxide
Abstract:
... In recent years, photocatalysis has been considered as a promising method, which provides measures to environmental pollution. Antibiotic resistant bacteria (ARB) and their antibiotic resistance genes (ARGs), as the emerging environmental pollutants, are released into the environment, resulting in antibiotic resistance spread. TiO2-based nanocomposites, as the most common photocatalytic material, ...
DOI:
10.1016/j.jhazmat.2019.120877

30. In-situ fabrication of Ag/P-g-C3N4 composites with enhanced photocatalytic activity for sulfamethoxazole degradation

Author:
Miao Chen; Changsheng Guo; Song Hou; Linlin Wu; Jiapei Lv; Chunhua Hu; Yuan Zhang; Jian Xu
Source:
Journal of hazardous materials 2019 v.366 pp. 219-228
ISSN:
0304-3894
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; X-ray photoelectron spectroscopy; electrons; energy-dispersive X-ray analysis; irradiation; liquid chromatography; photocatalysis; polymerization; reflectance spectroscopy; scanning electron microscopes; silver; sulfamethoxazole; superoxide anion; surface plasmon resonance; tandem mass spectrometry; transmission electron microscopy
Abstract:
... A series of Ag/P-g-C3N4 composites with different Ag content were synthesized for the first time by thermal polymerization combined with photo-deposition method. The composites were characterized by X-ray powder diffraction, field emission scanning electron microscope coupled with energy-dispersive X-ray spectroscopy, transmission electron microscopy, Fourier transform infrared spectroscopy, ultra ...
DOI:
10.1016/j.jhazmat.2018.11.104

31. Industrial textile effluent treatment and antibacterial effectiveness of Zea mays L. Dry husk mediated bio-synthesized copper oxide nanoparticles

Author:
Assumpta Chinwe Nwanya; Lovasoa Christine Razanamahandry; A.K.H. Bashir; Chinwe O. Ikpo; Stephen C. Nwanya; Subelia Botha; S.K.O. Ntwampe; Fabian I. Ezema; Emmanuel I. Iwuoha; Malik Maaza
Source:
Journal of hazardous materials 2019 v.375 pp. 281-289
ISSN:
0304-3894
Subject:
Bacillus licheniformis; Escherichia coli; Pseudomonas aeruginosa; Staphylococcus aureus; X-ray diffraction; Zea mays; biosynthesis; color; copper; cupric oxide; cuprous oxide; hulls; irradiation; light; methylene blue; nanoparticles; oxidation; photocatalysis; reflectance; textile mill effluents; transmission electron microscopes; transmission electron microscopy
Abstract:
... Zea mays L. dry husk extract was used to bio synthesize copper oxide nanoparticles. Red coloured cubic Cu2O nanoparticles were obtained for the first time via this simple, eco- friendly, green synthesis route. The Cu2O nanoparticles were thermally oxidized to pure monoclinic CuO nanoparticles at 600 °C. The phases of the copper oxides were confirmed from the x-ray diffraction (XRD) studies. The na ...
DOI:
10.1016/j.jhazmat.2019.05.004

32. Influence of carbonate on sequestration of U(VI) on perovskite

Author:
Songhua Lu; Kairuo Zhu; Tasawar Hayat; Njud S. Alharbi; Changlun Chen; Gang Song; Diyun Chen; Yubing Sun
Source:
Journal of hazardous materials 2019 v.364 pp. 100-107
ISSN:
0304-3894
Subject:
X-ray absorption spectroscopy; X-ray photoelectron spectroscopy; aqueous solutions; carbonates; decontamination; irradiation; oxidation; pH; photocatalysis; uranium
Abstract:
... Cubic perovskite (CaTiO₃) was successfully synthesized by a facile solvothermal method and was utilized to sequestrate U(VI) from aqueous solutions. The batch experiments revealed that carbonate inhibited U(VI) sequestration at pH > 6.0 due to the formation of uranyl-carbonate complexes. The maximum sequestration capacity of U(VI) on perovskite was 119.3 mg/g (pH 5.5). The sequestration mechanism ...
DOI:
10.1016/j.jhazmat.2018.10.035

33. Intermittent light and microbial action of mixed endogenous source DOM affects degradation of 17β-estradiol day after day in a relatively deep natural anaerobic aqueous environment

Author:
Lipeng Gu; Bin Huang; Fengxia Han; Zhixiang Xu; Dong Ren; Huan He; Xuejun Pan; Dionysios D. Dionysiou
Source:
Journal of hazardous materials 2019 v.369 pp. 40-49
ISSN:
0304-3894
Subject:
anaerobic conditions; bioavailability; biodegradation; electron transfer; energy transfer; estradiol; iron; irradiation; laboratory experimentation; lighting; microbial growth; molecular weight; optical properties; organic matter; photolysis; wastewater
Abstract:
... All kinds of wastewaters containing steroid estrogens (SEs) and mixed endogenous source dissolved organic matter (DOM) enter natural water environments with intermittent illumination where microbial action occurs in a relatively deep natural aqueous environment. The role of mixed endogenous source DOM in SEs’ biodegradation and photochemical degradation in such environments was studied using 17β-e ...
DOI:
10.1016/j.jhazmat.2019.02.017

34. Magnetically separable BiOBr/Fe3O4@SiO2 for visible-light-driven photocatalytic degradation of ibuprofen: Mechanistic investigation and prototype development

Author:
Musharib Khan; Christopher S.L. Fung; Ashutosh Kumar; Irene M.C. Lo
Source:
Journal of hazardous materials 2019 v.365 pp. 733-743
ISSN:
0304-3894
Subject:
anions; hydrogen peroxide; ibuprofen; irradiation; magnetism; mineralization; oxidation; photocatalysis; photocatalysts; pollutants; porous media; prototypes; risk; sewage; silica; wastewater
Abstract:
... The increasingly ubiquitous release of emerging refractory pollutants into water is a serious concern due to associated risks. In this study, mesoporous hierarchical BiOBr/Fe₃O₄@SiO₂―a solvothermally synthesized visible-light-driven magnetic photocatalyst―not only exhibited fast kinetics (t₁/₂ = 8.7 min) in the photocatalytic degradation of ibuprofen in water but also achieved almost complete mine ...
DOI:
10.1016/j.jhazmat.2018.11.053

35. Mechanisms for light-driven evolution of environmentally persistent free radicals and photolytic degradation of PAHs on Fe(III)-montmorillonite surface

Author:
Hanzhong Jia; Song Zhao; Yafang Shi; Kecheng Zhu; Pin Gao; Lingyan Zhu
Source:
Journal of hazardous materials 2019 v.362 pp. 92-98
ISSN:
0304-3894
Subject:
Fourier transform infrared spectroscopy; anthracenes; cations; electron paramagnetic resonance spectroscopy; electron transfer; environmental factors; free radicals; iron; irradiation; montmorillonite; phenanthrenes; photolysis
Abstract:
... Environmentally persistent free radicals (EPFRs) have been widely detected in superfund sites and atmospheric particles contaminated with organic contaminants, but the impacts of environmental factors such as light irradiation on the formation and evolution of EPFRs remain unclear. In the present study, in-situ irradiated Fourier transform infrared spectrometer and electron paramagnetic resonance ...
DOI:
10.1016/j.jhazmat.2018.09.019

36. Micro-TiO2 coated glass surfaces safely abate drugs in surface water

Author:
G. Cerrato; C.L. Bianchi; F. Galli; C. Pirola; S. Morandi; V. Capucci
Source:
Journal of hazardous materials 2019 v.363 pp. 328-334
ISSN:
0304-3894
Subject:
byproducts; carbon dioxide; electrospray ionization mass spectrometry; filtration; glass; human health; ibuprofen; ingredients; ionization; irradiation; mineralization; nanoparticles; personal care products; photocatalysis; photocatalysts; spectrometers; surface water; titanium dioxide; ultraviolet radiation
Abstract:
... The ingredients of Pharmaceuticals and Personal Care Products (PPCPs) persist in water and conventional treatment plants are not able to remove them efficiently. Sonochemical treatment is insufficient to mineralize organics such as ibuprofen into CO2 and H2O. TiO2 degrades ibuprofen (IBP) under UV light; however, it does not reach a high grade of conversion. Here, we investigated the mineralizatio ...
DOI:
10.1016/j.jhazmat.2018.09.057

37. Microwave-induced release and degradation of airborne endotoxins from Escherichia coli bioaerosol

Author:
C. Wang; Z.W. Zhang; H. Liu
Source:
Journal of hazardous materials 2019 v.366 pp. 27-33
ISSN:
0304-3894
Subject:
Escherichia coli; Gram-negative bacteria; activation energy; bioaerosols; chronic exposure; endotoxins; irradiation; microwave treatment
Abstract:
... Endotoxins are widely distributed toxins in the outer cell-wall membranes of Gram-negative bacteria and other microorganisms. Chronic exposure to endotoxins can induce and exacerbate airway symptoms and diseases. However, the release and degradation of airborne endotoxins from bioaerosol by microwave (MW) irradiation have not yet been reported. This study investigated the distribution and fate of ...
DOI:
10.1016/j.jhazmat.2018.11.088
PubMed:
30500695
PubMed Central:
PMC7116933

38. Nanocasting synthesis of chromium doped mesoporous CeO2 with enhanced visible-light photocatalytic CO2 reduction performance

Author:
Yangang Wang; Xia Bai; Fei Wang; Shifei Kang; Chaochuang Yin; Xi Li
Source:
Journal of hazardous materials 2019 v.372 pp. 69-76
ISSN:
0304-3894
Subject:
carbon dioxide; carbon monoxide; catalysts; ceric oxide; chromium; irradiation; methane; methane production; nitrates; photocatalysis; porous media; silica
Abstract:
... Chromium doped mesoporous CeO2 catalysts were synthesized via a simple nanocasting route by using silica SBA-15 as the template and metal nitrates as precursors. The effect of Cr doping concentration (5%, 10%, 15% and 20% of the initial Cr/(Cr+Ce) molar percentage) on the structures of these catalysts and their photocatalytic performances in reduction of CO2 with H2O were investigated. The results ...
DOI:
10.1016/j.jhazmat.2017.10.007

39. Novel method of square wave voltammetry for deposition of Bi2S3 thin film: Photocatalytic reduction of hexavalent Cr in single and binary mixtures

Author:
Mohammad Chahkandi; Mahboobeh Zargazi
Source:
Journal of hazardous materials 2019 v.380 pp. 120879
ISSN:
0304-3894
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; active oxygen species; atomic force microscopy; chromium; energy-dispersive X-ray analysis; irradiation; light; photocatalysis; scanning electron microscopy; solar radiation; stainless steel; superoxide anion
Abstract:
... In this work a new method of square‒wave voltammetry was performed for electrodepositing of Bi2S3 film on the stainless steel mesh surface as low-cost and effective substrate in visible light harvesting. First, the obtained porous film was characterized by X‒ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), atom ...
DOI:
10.1016/j.jhazmat.2019.120879

40. Photo-Responsive Chitosan/Ag/MoS2 for Rapid Bacteria-Killing

Author:
Min Zhu; Xiangmei Liu; Lei Tan; Zhenduo Cui; Yanqin Liang; Zhaoyang Li; Kelvin Wai Kwok Yeung; Shuilin Wu
Source:
Journal of hazardous materials 2019 pp. -
ISSN:
0304-3894
Subject:
Escherichia coli; Staphylococcus aureus; adverse effects; antibacterial properties; bacteria; bacterial infections; cell culture; cell growth; chitosan; coatings; electrons; human health; irradiation; light; medical equipment; molybdenum disulfide; nanosilver; oxygen; photocatalysis; silver; titanium
Abstract:
... Bacterial infection is a serious problem threatening human health. The chitosan (CS)-modified MoS2 coating loaded with silver nanoparticles (Ag NPs) was designed on the surface of titanium (Ti) to kill bacteria rapidly and efficiently under 660 nm visible light. Ag/MoS2 exhibited high photocatalytic activity due to the rapid transfer of photo-inspired electrons from MoS2 to Ag NPs, resulting in hi ...
DOI:
10.1016/j.jhazmat.2019.121122

41. Photochemical dissolution of buoyant microplastics to dissolved organic carbon: Rates and microbial impacts

Author:
Lixin Zhu; Shiye Zhao; Thais B. Bittar; Aron Stubbins; Daoji Li
Source:
Journal of hazardous materials 2019 pp. -
ISSN:
0304-3894
Subject:
aquatic bacteria; byproducts; dissolved organic carbon; food webs; irradiation; leachates; lighting; microbial growth; microplastics; oxidation; photolysis; polyethylene; polypropylenes; polystyrenes; solar radiation; surface water
Abstract:
... Trillions of plastic fragments are afloat at sea, yet they represent only 1-2% of the plastics entering the ocean annually. The fate of the missing plastic and its impact on marine life remains largely unknown. To address these unknowns, we irradiated post-consumer microplastics (polyethylene, PE; polypropylene, PP; and expanded polystyrene, EPS), standard PE, and plastic-fragments collected from ...
DOI:
10.1016/j.jhazmat.2019.121065

42. Plasmonics driven engineered pasteurizers for solar water disinfection (SWADIS)

Author:
Aditi Kulkarni; Atya Kapley; Rita S. Dhodapkar; Penumaka Nagababu; Sadhana Rayalu
Source:
Journal of hazardous materials 2019 v.369 pp. 474-482
ISSN:
0304-3894
Subject:
Escherichia coli; absorption; bacteria; carbon nanoparticles; decontamination; disinfection; infrared spectroscopy; irradiation; pasteurizers; pathogens; pollution; solar energy; solar radiation
Abstract:
... Rampant environmental pollution is the most ubiquitous concern of current world. A sustainable panacea to overarching contamination of water-borne pathogens demands cheap and eco-friendly oriented research. Solar energy is effortlessly accessible in most of the weather conditions and can be used for water decontamination. In this context, Solar Water Disinfection (SWADIS) appears to be feasible so ...
DOI:
10.1016/j.jhazmat.2019.02.052

43. Preparation of BiF3/BiOBr heterojunctions from microwave-assisted method and photocatalytic performances

Author:
Shujuan Zhang; Xiaoxiao Chen; Limin Song
Source:
Journal of hazardous materials 2019 v.367 pp. 304-315
ISSN:
0304-3894
Subject:
X-ray diffraction; X-ray photoelectron spectroscopy; fluorescence emission spectroscopy; irradiation; microwave treatment; photocatalysis; photocatalysts; rhodamines; scanning electron microscopy; ultraviolet-visible spectroscopy
Abstract:
... Novel BiF3/BiOBr heterojunction photocatalysts were prepared from a fast and stable microwave-assisted method, and characterized by X-ray diffractometry, X-ray photoelectron spectroscopy, scanning electron microscopy, ultraviolet-visible spectroscopy and fluorescence spectroscopy. The photocatalytic activity of BiF3/BiOBr heterojunctions under light irradiation was significantly higher than pure B ...
DOI:
10.1016/j.jhazmat.2018.12.060

44. Radiochemical reaction of DT/ T2 and CO under high pressure

Author:
Jiangfeng Song; Yifu Xiong; Liu Lang; Yan Shi; Jingwen Ba; Wenyong Jing; Mingming He
Source:
Journal of hazardous materials 2019 v.378 pp. 120720
ISSN:
0304-3894
Subject:
ambient temperature; carbon dioxide; carbon monoxide; formaldehyde; fuels; gas chromatography; irradiation; mass spectrometry; tritium
Abstract:
... For both fuel cycle design and safety evolution of tritium (T) in fusion reactor, it is important to study irradiation-induced reactions between T2 and various molecular species produced from nuclear-fusion fuel cleanup systems. The radiochemical reactions between deuterium-tritium/tritium and carbon monoxide of different concentrations under 1.0 MPa were elucidated in this work. The products and ...
DOI:
10.1016/j.jhazmat.2019.05.113

45. Radionuclide tolerance mechanism of plants for ultraselective enrichment of low content of thorium with exceptional selectivity coefficient

Author:
Wei Luo; Heng Xu; Yaping Wang; Xiaoxia Ye; Cheng Luo; Xuepin Liao; Xin Huang; Bi Shi
Source:
Journal of hazardous materials 2019 v.380 pp. 120893
ISSN:
0304-3894
Subject:
adsorption; barium; calcium; cesium; gravity; ions; irradiation; kinetics; magnesium; mass transfer; nitric acid; nuclear power; potassium; radionuclides; sodium; sorption isotherms; strontium; thorium; wastewater
Abstract:
... Selective enriching low content of radionuclides from radioactive wastewater is a critical issue for environmentally benign utilization of nuclear power. Inspired by the tolerance mechanism of plants to radionuclides, we developed a pH-triggered ultraselective coordinative adsorption (CA) membrane. The as-prepared CA membrane featured the advantages of both coordinative adsorption and membrane sep ...
DOI:
10.1016/j.jhazmat.2019.120893

46. Recyclable three-dimensional Ag nanorod arrays decorated with O-g-C3N4 for highly sensitive SERS sensing of organic pollutants

Author:
Lu-Lu Qu; Zhi-Qin Geng; Wen Wang; Kai-Chun Yang; Wei-Peng Wang; Cai-Qin Han; Guo-Hai Yang; Robert Vajtai; Da-Wei Li; Pulickel M. Ajayan
Source:
Journal of hazardous materials 2019 v.379 pp. 120823
ISSN:
0304-3894
Subject:
Raman spectroscopy; antibiotics; carbon nitride; catalytic activity; chemical species; graphene; irradiation; light; nanorods; nanosilver; pollutants; silver
Abstract:
... A three-dimensional (3D) substrate was developed by assembling a monolayer of graphitic carbon nitride (O-g-C3N4) on Ag nanorod arrays (Ag NRs) for sensitive and recyclable surface enhanced Raman scattering (SERS) detection. The prepared Ag NRs/O-g-C3N4 substrate not only generated a significant Raman enhancement effect as a result of the strong π-π stacking interaction between O-g-C3N4 and the an ...
DOI:
10.1016/j.jhazmat.2019.120823

47. Removal of aqueous chromium and environmental CO2 by using photocatalytic TiO2 doped with tungsten

Author:
M. Trejo-Valdez; S.R. Hernández-Guzmán; M.E. Manriquez-Ramírez; H. Sobral; H. Martínez-Gutiérrez; C. Torres-Torres
Source:
Journal of hazardous materials 2019 v.370 pp. 196-202
ISSN:
0304-3894
Subject:
Raman spectroscopy; X-ray photoelectron spectroscopy; air; anions; carbon dioxide; chromium; dispersions; irradiation; mineralization; oxygen; photocatalysis; photocatalysts; scanning electron microscopy; titanium dioxide; transmission electron microscopy; tungsten oxide; white light
Abstract:
... Removal of hexavalent chromium was accomplished by using photocatalyst materials of TiO2 doped with tungsten oxide, environmental air as oxygen supply and white light as irradiation source. Dichromate anions in concentration ranges of 50 to 1000 μg/L were removed by means of aqueous dispersions of TiO2 doped with tungsten. The aqueous chromium analyses were performed by Differential Pulse Voltamme ...
DOI:
10.1016/j.jhazmat.2018.05.008

48. Smart nonwoven fabric with reversibly dual-stimuli responsive wettability for intelligent oil-water separation and pollutants removal

Author:
Duan-Chao Wang; Xiaogang Yang; Hou-Yong Yu; Jiping Gu; Dongming Qi; Juming Yao; Qingqing Ni
Source:
Journal of hazardous materials 2019 pp. -
ISSN:
0304-3894
Subject:
acetone; cellulose; chloroform; copper; dyes; hydrophilicity; hydrophobicity; irradiation; lipophilicity; moieties; nanocrystals; nanohybrids; nonwoven fabrics; oils; pH; photocatalysis; pollutants; silicone; solvents; toxicity; ultraviolet radiation; water pollution; wettability; zinc oxide
Abstract:
... This work presents the first fabrication of smart nonwoven fabric (DSR-CZPP) with extraordinary reversible double-stimulus responsive wettability, where carboxyl groups of cellulose nanocrystals/zinc oxide (CNC/ZnO) nanohybrids deposited on fabric surface can bond with hydroxyl group of the PDMAEMA-b-PHEMA-b-PMAAAB triblock polymer brushes that was prepared by using methyl methacrylate (HEMA), dim ...
DOI:
10.1016/j.jhazmat.2019.121123

49. Sono- and photoelectrocatalytic processes for the removal of ionic liquids based on the 1-butyl-3-methylimidazolium cation

Author:
Ismael F. Mena; Salvador Cotillas; Elena Díaz; Cristina Sáez; Ángel F. Mohedano; Manuel A. Rodrigo
Source:
Journal of hazardous materials 2019 v.372 pp. 77-84
ISSN:
0304-3894
Subject:
acetates; anodes; carbon dioxide; cations; chlorides; electrochemistry; electrolysis; free radicals; ionic liquids; irradiation; nitrogen; oxidation; photocatalysis; ultrasonics; ultraviolet radiation; wastewater
Abstract:
... In this work, sono- and photoelectrolysis of synthetic wastewaters polluted with the ionic liquids 1-Butyl-3-methylimidazolium acetate (BmimAc) and chloride (BmimCl) were investigated with diamond anodes. The results were compared to those attained by enhancing bare electrolysis with irradiation by UV light or with the application of high-frequency ultrasound (US). Despite its complex heterocyclic ...
DOI:
10.1016/j.jhazmat.2017.12.015

50. Space-confined growth of layered basic zinc acetate nanosheets and their orderly fragmented ZnO nanoparticles on clay platelets

Author:
Shakiaz Ahmad; Xintai Su; Chao Yang; Xinyu Wang; Xuemin Liu; Jide Wang
Source:
Journal of hazardous materials 2019 v.371 pp. 213-223
ISSN:
0304-3894
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; adsorption; bentonite; blood platelets; differential scanning calorimetry; irradiation; methyl orange; nanoparticles; nanosheets; photolysis; scanning electron microscopy; thermogravimetry; transmission electron microscopy; ultraviolet radiation; zinc acetate; zinc oxide
Abstract:
... Here, hierarchical nanostructures of clay-based hybrids were synthesized via a space-confined growth of layered basic zinc acetate (LBZA) nanosheets standing upright on both sides of bentonite clay platelets. These thermally instable LBZA nanosheets were thermally decomposed and fragmented into ZnO nanoparticles well-dispersed on bentonite platelets. The morphology and structure of LBZA/bentonite ...
DOI:
10.1016/j.jhazmat.2019.02.111

51. Superimposed surface plasma resonance effect enhanced the near-infrared photocatalytic activity of Au@Bi2WO6 coating for rapid bacterial killing

Author:
Bo Li; Lei Tan; Xiangmei Liu; Zhaoyang Li; Zhenduo Cui; Yanqin Liang; Shengli Zhu; Xianjin Yang; Kelvin Wai Kwok Yeung; Shuilin Wu
Source:
Journal of hazardous materials 2019 v.380 pp. 120818
ISSN:
0304-3894
Subject:
Escherichia coli; Staphylococcus aureus; antibiotics; bacterial infections; bismuth; coatings; disinfection; electron transfer; fever; gold; irradiation; nanogold; nanosheets; near-infrared spectroscopy; oxygen; photocatalysis; public health; surface plasmon resonance; synergism; titanium
Abstract:
... Bacterial infection has become a serious public health challenge because the misuse of antibiotics worldwide has induced bacterial resistance and superbug occurrences, that is, no suitable antibiotics are available. Herein, we design a new infrared photocatalytic system on titanium (Ti) substrates, and it consists of gold (Au) nanorod-decorated bismuth tungstate (Bi2WO6) nanosheets (Au@Bi2WO6). Th ...
DOI:
10.1016/j.jhazmat.2019.120818

52. Synergetic degradation of VOCs by vacuum ultraviolet photolysis and catalytic ozonation over Mn-xCe/ZSM-5

Author:
Yajie Shu; Miao He; Jian Ji; Haibao Huang; Shengwei Liu; Dennis Y.C. Leung
Source:
Journal of hazardous materials 2019 v.364 pp. 770-779
ISSN:
0304-3894
Subject:
adsorption; byproducts; catalysts; cerium; gases; irradiation; manganese; oxidation; oxides; oxygen; ozonation; ozone; particulates; photolysis; pollution; reactive oxygen species; toluene; ultraviolet radiation; volatile organic compounds
Abstract:
... Volatile organic compounds (VOCs) are one of the most important precursors to form the fine particulate matter and photochemical smog, and should be strictly controlled. Vacuum ultraviolet (VUV) photolysis has provided a facile and an effective way to remove VOCs due to its powerful oxidation capability under mild reaction conditions. However, VUV irradiation would generate ozone which brings abou ...
DOI:
10.1016/j.jhazmat.2018.10.057

53. Synthesis of highly-efficient photocatalyst for visible- light-driven hydrogen evolution by recycling of heavy metal ions in wastewater

Author:
Min Wang; Heliang Yao; Linlin Zhang; Xiaoxia Zhou
Source:
Journal of hazardous materials 2019 pp. -
ISSN:
0304-3894
Subject:
absorption; adsorbents; cadmium; cadmium sulfide; dispersibility; energy; heavy metals; hydrogen production; ion exchange; irradiation; light; metal ions; nanoparticles; photocatalysis; photocatalysts; porous media; surface area; synergism; wastewater; water pollution; zeolites; zinc; zinc sulfide
Abstract:
... Water pollution and energy crisis are two important research subjects awaited to solution. Herein, we propose a strategy of "turning scrap into wealth” to obtain the highly-efficient photocatalyst for hydrogen evolution by recycling of heavy metal ions in wastewater. The novel mesoporous zeolite Beta (mBeta) can be used as adsorbent to remove the heavy metal ions (i.e., Cd2+ and/or Zn2+) from wast ...
DOI:
10.1016/j.jhazmat.2019.121149

54. The enhanced photocatalytic properties of MnO2/g-C3N4 heterostructure for rapid sterilization under visible light

Author:
Beibei Wu; Yuan Li; Kun Su; Lei Tan; Xiangmei Liu; Zhenduo Cui; Xianjin Yang; Yanqin Liang; Zhaoyang Li; Shengli Zhu; Kelvin Wai Kwok Yeung; Shuilin Wu
Source:
Journal of hazardous materials 2019 v.377 pp. 227-236
ISSN:
0304-3894
Subject:
DNA; Escherichia coli; Staphylococcus aureus; adverse effects; antibiotics; bacteria; biosafety; carbon nitride; coatings; disinfection; glutathione; irradiation; light; manganese dioxide; oxidation; oxidative stress; photocatalysis; photocatalysts; synergism; therapeutics
Abstract:
... Herein, a heterostructure based on MnO2 and g-C3N4 was constructed on the surface of metallic Ti implants, in which MnO2 favored the transfer and separation of free charges to enhance the photoconversion efficiency of g-C3N4 by 21.11%. Consequently, the yield of ROS was promoted significantly, which denatured protein and damaged DNA to kill bacteria efficiently. In addition, glutathione (GSH, l-γ- ...
DOI:
10.1016/j.jhazmat.2019.05.074

55. The enhanced visible-light-driven antibacterial performances of PTCDI-PANI(Fe(III)-doped) heterostructure

Author:
Yang Cheng; Ruqian Song; Kui Wu; Na Peng; Mian Yang; Jing Luo; Tao Zou; Yuegang Zuo; Yi Liu
Source:
Journal of hazardous materials 2019 pp. -
ISSN:
0304-3894
Subject:
Escherichia coli; Staphylococcus aureus; antibacterial properties; bacteria; bacterial adhesion; energy; hydroxyl radicals; iron; irradiation; light; photocatalysis; photocatalysts; pollution; polymerization; semiconductors; wastewater
Abstract:
... The development of visible-light-responsive photocatalysts with organic semiconductors is considered as an important and promising way to solve the energy crisis and environmental pollution. In this work, PTCDI and PTCDI-PANI(Fe(III)-doped) heterostructure were prepared through radical polymerization and modified amidation reaction. They could be used as visible-light-driven photocatalysts for the ...
DOI:
10.1016/j.jhazmat.2019.121166