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1. 3D hierarchical graphene oxide-NiFe LDH composite with enhanced adsorption affinity to Congo red, methyl orange and Cr(VI) ions

Author:
Zheng, Yingqiu; Cheng, Bei; You, Wei; Yu, Jiaguo; Ho, Wingkei
Source:
Journal of hazardous materials 2019 v.369 pp. 214-225
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; adsorption; aquatic environment; chromium; electron microscopy; graphene; ions; kinetics; microparticles; models; nanosheets; pollutants; sorption isotherms;     Show all 13 Subjects
Abstract:
... Three-dimensional (3D) hierarchical graphene oxide-NiFe layered double hydroxide (GO-NiFe LDH) composite with sandwich-like structure is fabricated using a facile one-pot hydrothermal reaction. Electron microscopy images demonstrate that the GO-NiFe LDH composite possesses a highly porous and well-ordered structure. Both sides of the GO are fully covered by the LDH nanosheets, resulting in the san ...
DOI:
10.1016/j.jhazmat.2019.02.013

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

Author:
Chen, Dayong; Huang, Shoushuang; Huang, Ruting; Zhang, Qian; Le, Thanh-Tung; Cheng, Erbo; Yue, Rong; Hu, Zhangjun; Chen, Zhiwen
Source:
Journal of hazardous materials 2019 v.368 pp. 204-213
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; active sites; air; electrons; irradiation; lighting; microparticles; nickel; oxidation; photocatalysis; photolysis; porosity; quantum dots; synergism; tin dioxide;     Show all 15 Subjects
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

3. Novel synthesis of nanoscale zerovalent iron from coal fly ash and its application in oxidative degradation of methyl orange by Fenton reaction

Author:
Yoon, Sunho; Bae, Sungjun
Source:
Journal of hazardous materials 2019 v.365 pp. 751-758
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; borohydrides; chelation; coal fly ash; decolorization; hydrochloric acid; hydrogen peroxide; iron; oxidation; pH; total organic carbon;     Show all 11 Subjects
Abstract:
... We firstly developed a novel synthesis method of nanoscale zerovalent iron (NZVI) using Fe sources in coal fly ash (CFA) for the oxidative degradation of methyl orange by Fenton reaction. Hydrochloric acid (HCl) and methyl isobutyl ketone (MIBK) were used for Fe dissolution from CFA and selective Fe(III) chelation, respectively. Among varied HCl concentrations, 7 N HCl showed the best performance ...
DOI:
10.1016/j.jhazmat.2018.11.073

4. Degradation of organic pollutants by anaerobic methane-oxidizing microorganisms using methyl orange as example

Author:
Fu, Liang; Bai, Ya-Nan; Lu, Yong-Ze; Ding, Jing; Zhou, Dandan; Zeng, Raymond Jianxiong
Source:
Journal of hazardous materials 2019 v.364 pp. 264-271
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; Pseudoxanthomonas; carbon; electron transfer; isotopes; long term experiments; metals; methane; microbial communities; microorganisms; nitrates; nitrites; oxidation; pollutants; sulfates;     Show all 15 Subjects
Abstract:
... Anaerobic oxidation of methane (AOM) microorganisms widespread in nature and they are able to utilize methane as electron donor to reduce sulfate, nitrate, nitrite, and high valence metals. However, whether persistent organic contaminants can also be degraded remains unknown. In this study, the organic pollutant methyl orange (MO) was used to address this open question. The initial concentration o ...
DOI:
10.1016/j.jhazmat.2018.10.036

5. Superior adsorption capacity of functionalised straw adsorbent for dyes and heavy-metal ions

Author:
Liu, Qiming; Li, Yaoyue; Chen, Huafeng; Lu, Jian; Yu, Guangsuo; Möslang, Maxim; Zhou, Yanbo
Source:
Journal of hazardous materials 2019
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; acrylamides; adsorbents; adsorption; aqueous solutions; chromates; citric acid; copper; dyeing; electrostatic interactions; heavy metals; ions; methylene blue; moieties; pollutants; straw; wastewater;     Show all 17 Subjects
Abstract:
... Dyes and heavy-metal ions are common pollutants in printing and dyeing wastewater, and are thus attracting considerable attention. Herein, an eco-friendly straw-based adsorbent, WS-CA-AM, was prepared by grafting with acrylamide (AM) and citric acid (CA) groups to remove representative dyes and heavy metals from aqueous solution. The adsorption capacities of WS-CA-AM for methyl orange (MO) and met ...
DOI:
10.1016/j.jhazmat.2019.121040

6. Electronic and Nanostructure Engineering of Bifunctional MoS2 towards Exceptional Visible-Light Photocatalytic CO2 Reduction and Pollutant Degradation

Author:
Khan, Bilawal; Raziq, Fazal; Bilal Faheem, M.; Umar Farooq, M.; Hussain, Sadam; Ali, Farman; Ullah, Abid; Mavlonov, Abdurashid; Zhao, Yang; Liu, Zhongran; Tian, He; Shen, Huahai; Zu, Xiaotao; Li, Sean; Xiao, Haiyan; Xiang, Xia; Qiao, Liang
Source:
Journal of hazardous materials 2019
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; carbon dioxide; electrochemistry; energy; engineering; hydroxyl radicals; light; methane; methylene blue; molybdenum disulfide; nanocomposites; nanosheets; nanosilver; photocatalysis; photocatalysts; pollutants; silver; surface area; tin dioxide;     Show all 19 Subjects
Abstract:
... With recently increasing environmental issues and foreseeable energy crisis, it is desirable to design cheap, efficient, and visible-light responsive nano-photocatalyst for CO2 conversion and pollutant degradation. Herein, we report a flower-like of MoS2-based hybrid photocatalyst with high efficiency through nanostructure and electronic structure engineering. Nanostructure control is used to fabr ...
DOI:
10.1016/j.jhazmat.2019.120972

7. Mechanistic insights for the electro-Fenton regeneration of carbon materials saturated with methyl orange: Dominance of electrodesorption

Author:
Xiao, Ye; Hill, Josephine M.
Source:
Journal of hazardous materials 2019 v.367 pp. 59-67
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; activated carbon; adsorbents; adsorption; benzoic acid; cathodes; electrochemistry; electrostatic interactions; ferric oxide; maghemite; magnetism; mathematical models; methylene blue; micropores; oxidation; pollution control; porous media;     Show all 17 Subjects
Abstract:
... Adsorption followed by regeneration of the adsorbent is a sustainable way to remove pollutants from water systems. In this study, the electro-Fenton regeneration of activated carbon and mesoporous carbon loaded with magnetic γ-Fe2O3 and then saturated with an anionic adsorbate, methyl orange, has been studied. The saturated adsorbents were regenerated and the influence of several factors on the re ...
DOI:
10.1016/j.jhazmat.2018.12.066

8. Recyclable polyvinyl alcohol sponge containing flower-like layered double hydroxide microspheres for efficient removal of As(V) anions and anionic dyes from water

Author:
Dai, Xiaohui; Zhang, Shuxin; Waterhouse, Geoffrey I.N.; Fan, Hai; Ai, Shiyun
Source:
Journal of hazardous materials 2019 v.367 pp. 286-292
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; adsorbents; adsorption; anions; arsenic; dyes; hot water treatment; hydroxides; iron; microparticles; pollutants; pollution control; polyvinyl alcohol; powders; surface area; thermal stability; water treatment; zinc;     Show all 18 Subjects
Abstract:
... Layered double hydroxides (LDHs) are very promising adsorbents for the removal of anionic pollutants from water. However, the low adsorption efficiency and recycling difficulty of conventional LDH powders are obstacles to practical applications. Herein, a novel Zn/Fe-LDH composite sponge was successfully fabricated using a simple in-situ hydrothermal method. Characterization studies revealed that ...
DOI:
10.1016/j.jhazmat.2018.12.092

9. Removal of organic dye by biomass-based iron carbide composite with an improved stability and efficiency

Author:
Zhao, Nan; Chang, Feiran; Hao, Boyuan; Yu, Lian; Morel, Jean Louis; Zhang, Jing
Source:
Journal of hazardous materials 2019
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; biomass; carbonation; chemical reduction; colorimetry; dyes; high performance liquid chromatography; iron; mass spectrometry; models; oxidation; oxygen; pH; pollutants; soil; water pollution;     Show all 16 Subjects
Abstract:
... The efficiency of zero-valent iron (Fe0) for the degradation of contaminants in water or soil can be highly reduced by side reactions with oxygen or water. This work was conducted to test whether this drawback can be effectively suppressed by the carbonation of Fe0 with pyrolyzed biomass, which forms a Fe3C composite. The composite Fe3C was characterized and its reactivity and stability were asses ...
DOI:
10.1016/j.jhazmat.2019.02.077

10. Acid-treated clay catalysts for organic dye ozonation – Thorough mineralization through optimum catalyst basicity and hydrophilic character

Author:
Boudissa, Farida; Mirilà, Diana; Arus, Vasilica-Alisa; Terkmani, Thizizi; Semaan, Sirène; Proulx, Mélanie; Nistor, Ileana-Denisa; Roy, René; Azzouz, Abdelkrim
Source:
Journal of hazardous materials 2019 v.364 pp. 356-366
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; adsorption; bentonite; carbon dioxide; catalysts; catalytic activity; cation exchange; clay; desorption; hydrophilicity; hydrophobic bonding; iron; methylene blue; mineralization; montmorillonite; ozonation;     Show all 16 Subjects
Abstract:
... Catalytic ozonation of Methylene Blue, Methyl Green, Methyl Orange and Methyl-thymol Blue was investigated in the presence of ion-exchanged montmorillonite (NaMt and Fe(II)Mt), crude bentonite and acid-activated counterparts. An original approach never tackled so far consisted in correlating the basicity and hydrophilic character to the dye-catalyst interactions occurring on the catalyst surface. ...
DOI:
10.1016/j.jhazmat.2018.09.070

11. Enhanced dyes adsorption from wastewater via Fe3O4 nanoparticles functionalized activated carbon

Author:
Liu, Xiaoduo; Tian, Jiefu; Li, Yuanyuan; Sun, Ningfei; Mi, Shu; Xie, Yong; Chen, Ziyu
Source:
Journal of hazardous materials 2019 v.373 pp. 397-407
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; activated carbon; adsorbents; adsorption; aqueous solutions; dyes; equations; heat production; iron oxides; magnetic separation; magnetism; models; moieties; nanoparticles; physicochemical properties; purification methods; rhodamines; surface area; wastewater; wastewater treatment;     Show all 20 Subjects
Abstract:
... Fe3O4 nanoparticles functionalized activated carbon (Fe3O4/AC) as an adsorbent was prepared and used for fast and effectively removing rhodamine B (RhB) and methyl orange (MO) from aqueous solution. Its physical and chemical properties characterized indicate that the adsorbent possesses abundant surface functional groups, sensitive magnetic response and enhanced specific surface area. Batch experi ...
DOI:
10.1016/j.jhazmat.2019.03.103

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

Author:
Yan, Qishe; Xie, Xin; Liu, Yonggang; Wang, Shenbo; Zhang, Menghan; Chen, Yongyang; Si, Yushan
Source:
Journal of hazardous materials 2019 v.371 pp. 304-315
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; X-ray diffraction; X-ray photoelectron spectroscopy; bismuth; electron paramagnetic resonance spectroscopy; energy-dispersive X-ray analysis; free radicals; iodides; irradiation; models; nanoparticles; photocatalysis; scanning electron microscopy; silver; superoxide anion; transmission electron microscopy;     Show all 16 Subjects
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

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

Author:
Ahmad, Shakiaz; Su, Xintai; Yang, Chao; Wang, Xinyu; Liu, Xuemin; Wang, Jide
Source:
Journal of hazardous materials 2019 v.371 pp. 213-223
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; adsorption; bentonite; blood platelets; differential scanning calorimetry; irradiation; nanoparticles; nanosheets; photolysis; scanning electron microscopy; thermogravimetry; transmission electron microscopy; ultraviolet radiation; zinc acetate; zinc oxide;     Show all 17 Subjects
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

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

Author:
Zangeneh, Hadis; Zinatizadeh, Ali Akbar; Zinadini, Sirus; Feyzi, Mostafa; Rafiee, Ezzat; Bahnemann, Detlef W.
Source:
Journal of hazardous materials 2019 v.369 pp. 384-397
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; chemical oxygen demand; histidine; irradiation; nanocomposites; nanoparticles; oil mill effluents; optical properties; pH; photocatalysts; photoluminescence; photolysis; reflectance spectroscopy; response surface methodology; scanning electron microscopy; titanium dioxide; wastewater;     Show all 19 Subjects
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

15. The first synthesis of CdFe12O19 nanostructures and nanocomposites and considering of magnetic, optical, electrochemical and photocatalytic properties

Author:
Mahdiani, Maryam; Sobhani, Azam; Salavati-Niasari, Masoud
Source:
Journal of hazardous materials 2019 v.367 pp. 607-619
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; Fourier transform infrared spectroscopy; X-ray diffraction; ambient temperature; cadmium; electrochemistry; energy-dispersive X-ray analysis; magnetism; methylene blue; nanocomposites; nanomaterials; particle size; photocatalysis; scanning electron microscopy; transmission electron microscopy; ultraviolet-visible spectroscopy;     Show all 16 Subjects
Abstract:
... CdFe12O19 nanostructures and nanocomposites were synthesized via sol-gel auto-combustion method. The CdFe12O19/CdTiO3 nanocomposites were prepared at 850 °C after 1 h calcination, when molar ratio of Cd:Ti is 1:1. Effects of the molar ratio of Cd:Ti, type of precursor and calcination temperature were investigated. Both nanostructures and nanocomposites were ferromagnetic at room temperature, with ...
DOI:
10.1016/j.jhazmat.2019.01.007

16. Preparation of micro-electrolysis material from flotation waste of copper slag and its application for degradation of organic contaminants in water

Author:
Yu, Wen; Sun, Yangyang; Lei, Mengjie; Chen, Shumei; Qiu, Tingsheng; Tang, Qiongyao
Source:
Journal of hazardous materials 2019 v.361 pp. 221-227
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; X-ray diffraction; coal; copper; decolorization; energy-dispersive X-ray analysis; eosin; iron; methylene blue; pH; raw materials; redox reactions; roasting; scanning electron microscopy; slags; temperature; wastes; water pollution;     Show all 18 Subjects
Abstract:
... Flotation waste of copper slag (FWCS) was used as a raw material for the preparation of a micro-electrolysis material (MEM) through a carbothermal reduction process. The performance of MEM was evaluated for the degradation of organic contaminants in water. The effects of preparation conditions on the performance of MEM were investigated. Results showed that the MEM prepared under the conditions of ...
DOI:
10.1016/j.jhazmat.2018.08.098

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

Author:
Fei, Bao-Li; Deng, Ni-Ping; Wang, Jiang-Hong; Liu, Qing-Bo; Long, Jian-Ying; Li, Yang-Guang; Mei, Xiang
Source:
Journal of hazardous materials 2017 v.340 pp. 326-335
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; catalysts; flocculation; irradiation; methylene blue; phenol; rhodamines;     Show all 7 Subjects
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

18. Influence of the electronic structures on the heterogeneous photoelectrocatalytic performance of Ti/RuxSn1-xO2 electrodes

Author:
Chen, Zhijie; Zhu, Junqiu; Zhang, Shuai; Shao, Yanqun; Lin, Deyuan; Zhou, Jianfeng; Chen, Yunxiang; Tang, Dian
Source:
Journal of hazardous materials 2017 v.333 pp. 232-241
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; aqueous solutions; coatings; electrodes; photocatalysis; ruthenium; thermal degradation;     Show all 7 Subjects
Abstract:
... DSA-type Ti/RuxSn1-xO2 electrodes were prepared by thermal decomposition method as photoelectrocatalysts (PECs) and extensively characterized by various sophisticated techniques. First-principles calculations was employed to study the effects of Ru content on the electronic structures of the RuxSn1-xO2 coatings. The photoelectric-synergistic catalytic activity of the Ti/RuxSn1-xO2 electrodes was e ...
DOI:
10.1016/j.jhazmat.2017.03.024

19. Natural sunlight driven highly efficient photocatalysis for simultaneous degradation of rhodamine B and methyl orange using I/C codoped TiO2 photocatalyst

Author:
Wang, Ji-Chao; Lou, Hui-Hui; Xu, Zhi-Hua; Cui, Cheng-Xing; Li, Zhong-Jun; Jiang, Kai; Zhang, Yu-Ping; Qu, Ling-Bo; Shi, Weina
Source:
Journal of hazardous materials 2018 v.360 pp. 356-363
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; absorption; carbon; hydrogen peroxide; hydroxyl radicals; iodine; irradiation; photocatalysis; photocatalysts; rhodamines; semiconductors; solar radiation; titanium dioxide;     Show all 13 Subjects
Abstract:
... Increasing the efficiency of dye degradation is a critical issue for the application for photocatalysis. It is one of the greatest challenges to enhance the utilization of photo generated carriers in semiconductor, especially for sunlight irradiation. In this study, I/C-codoped TiO2 was synthesized by a simple solvothermal-calcination method. The codoping interstitial carbon and substitutional iod ...
DOI:
10.1016/j.jhazmat.2018.08.008

20. New shape-selectivity discovered on graphene-based materials in catching tobacco specific nitrosamines

Author:
Sun, Xiao Dan; Shi, Chun Ling; Li, Shuo Hao; Wang, Yang-zhong; Qi, Da-wei; Wang, Wei-miao; Yao, He-ming; Wang, Ying; Zhu, Jian Hua
Source:
Journal of hazardous materials 2018 v.358 pp. 234-242
ISSN:
0304-3894
Subject:
methyl orange,   etc   ; Fourier transform infrared spectroscopy; adsorbents; adsorption; aqueous solutions; carbon nanotubes; carcinogens; dyes; electrons; energy; graphene; nitrosamines; tobacco; zeolites;     Show all 14 Subjects
Abstract:
... New shape-selectivity of graphene-based materials was discovered on this article. To explore the new selectivity, the structure and surface state of graphene and carbon nanotube were examined firstly, and their specific selectivity was verified and was compared with that of ZSM-5 zeolite in aqueous solutions of tobacco specific nitrosamines (TSNA) along with dyes. These two adsorbents trapped abou ...
DOI:
10.1016/j.jhazmat.2018.06.063