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Han X, Zhou C, Chen Y, Wan Y, Zhang B, Shi L, Shi S. Preparation of Yb-Sb co-doped Ti/SnO 2 electrode for electrocatalytic degradation of sulfamethoxazole (SMX). CHEMOSPHERE 2023; 339:139633. [PMID: 37516322 DOI: 10.1016/j.chemosphere.2023.139633] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 07/21/2023] [Accepted: 07/22/2023] [Indexed: 07/31/2023]
Abstract
To efficiently break down residual sulfonamide antibiotics in environmental water, Yb-Sb co-doped Ti/SnO2 electrodes were fabricated using a solvothermal method. The effect of different amounts of Yb doping on the properties of the electrodes was studied. When the atom ratio of Sn: Yb is 100 : 7.5 in the preparation, the as-obtained coral-like electrodes (denoted as Yb 7.5%) possessed the smallest diameter of spherical particles on the surfaces, to result in the denser surface, highest electrocatalytic activity and smallest resistance of the electrode. As anode for electrocatalytic degradation of sulfamethoxazole, the Yb 7.5% electrode showed a degradation rate of 92% in 90 min, which was much higher than that of Yb 0% electrode (62.7% degradation rate). The electrocatalytic degradation of sulfamethoxazole was investigated with varying current densities and initial concentrations. Results indicated that the degradation process followed pseudo-first-order kinetics, and the degradation rate constants for Yb 7.5% and Yb 0% electrodes were 0.0278 min-1 and 0.0114 min-1, respectively. Furthermore, the service life of Ti/SnO2 electrodes was significantly improved after Yb doping, as demonstrated by accelerated life testing. Yb 7.5% exhibited a service life that was 2.7 times longer than that of Yb 0%. This work offers a new approach to construct Yb-Sb co-doped Ti/SnO2 electrodes with excellent electrooxidation activity and high stability for the electrochemical oxidation degradation of sulfamethoxazole.
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Affiliation(s)
- Xiao Han
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, PR China; School of Rare Earths, University of Science and Technology of China, Hefei, Anhui, 230026, PR China.
| | - Chenliang Zhou
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, PR China; School of Rare Earths, University of Science and Technology of China, Hefei, Anhui, 230026, PR China.
| | - Yongjing Chen
- JiangXi University of Science and Technology, College of Resources and Environmental Engineering, Ganzhou, 341000, PR China.
| | - Yinhua Wan
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, PR China; School of Rare Earths, University of Science and Technology of China, Hefei, Anhui, 230026, PR China; College of Resources and Environment, Nanchang University, Nanchang, 330031, PR China; Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, PR China.
| | - Baozhi Zhang
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, PR China; School of Rare Earths, University of Science and Technology of China, Hefei, Anhui, 230026, PR China.
| | - Lili Shi
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, PR China; College of Resources and Environment, Nanchang University, Nanchang, 330031, PR China.
| | - Shaoyuan Shi
- Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, 341000, PR China; School of Rare Earths, University of Science and Technology of China, Hefei, Anhui, 230026, PR China; College of Resources and Environment, Nanchang University, Nanchang, 330031, PR China; Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, PR China; Innovation Academy for Green Manufacture, Chinese Academy of Sciences, Beijing, 100190, PR China.
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2
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Xie J, Xie J, Miller CJ, Waite TD. Enhanced Direct Electron Transfer Mediated Contaminant Degradation by Fe(IV) Using a Carbon Black-Supported Fe(III)-TAML Suspension Electrode System. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:2557-2565. [PMID: 36725204 DOI: 10.1021/acs.est.2c08467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Iron complexes of tetra-amido macrocyclic ligands (Fe-TAML) are recognized to be effective catalysts for the degradation of a wide range of organic contaminants in homogeneous conditions with the high valent Fe(IV) and Fe(V) species generated on activation of the Fe-TAML complex by hydrogen peroxide (H2O2) recognized to be powerful oxidants. Electrochemical activation of Fe-TAML would appear an attractive alternative to H2O2 activation, especially if the Fe-TAML complex could be attached to the anode, as this would enable formation of high valent iron species at the anode and, importantly, retention of the valuable Fe-TAML complex within the reaction system. In this work, we affix Fe-TAML to the surface of carbon black particles and apply this "suspension anode" process to oxidize selected target compounds via generation of high valent iron species. We show that the overpotential for Fe(IV) formation is 0.17 V lower than the potential required to generate Fe(IV) electrochemically in homogeneous solution and also show that the stability of the Fe(IV) species is enhanced considerably compared to the homogeneous Fe-TAML case. Application of the carbon black-supported Fe-TAML suspension anode reactor to degradation of oxalate and hydroquinone with an initial pH value of 3 resulted in oxidation rate constants that were up to three times higher than could be achieved by anodic oxidation in the absence of Fe-TAML and at energy consumptions per order of removal substantially lower than could be achieved by alternate technologies.
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Affiliation(s)
- Jiangzhou Xie
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW2052, Australia
- UNSW Centre for Transformational Environmental Technologies, Yixing, Jiangsu Province, 214206, P.R. China
| | - Jieli Xie
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW2052, Australia
| | - Christopher J Miller
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW2052, Australia
| | - T David Waite
- UNSW Water Research Centre, School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW2052, Australia
- UNSW Centre for Transformational Environmental Technologies, Yixing, Jiangsu Province, 214206, P.R. China
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3
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Diao Y, Wei F, Zhang L, Yang Y, Yao Y. Study on the preparation, characterization, and electrocatalytic performance of
Gd
‐doped
PbO
2
electrodes. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Yuhan Diao
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin P. R. China
| | - Feng Wei
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin P. R. China
| | - Liman Zhang
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin P. R. China
| | - Yang Yang
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin P. R. China
| | - Yingwu Yao
- School of Chemical Engineering and Technology Hebei University of Technology Tianjin P. R. China
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4
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Guo D, Guo Y, Huang Y, Chen Y, Dong X, Chen H, Li S. Preparation and electrochemical treatment application of Ti/Sb-SnO 2-Eu&rGO electrode in the degradation of clothianidin wastewater. CHEMOSPHERE 2021; 265:129126. [PMID: 33288288 DOI: 10.1016/j.chemosphere.2020.129126] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 11/04/2020] [Accepted: 11/24/2020] [Indexed: 06/12/2023]
Abstract
This work investigated the preparation of Ti/Sb-SnO2 electrode co-doped with graphene and europium and the electrochemical degradation of clothianidin in aqueous solution with Ti/Sb-SnO2-Eu&rGO electrode. The physicochemical properties of different electrodes were characterized by using the scanning electron microscopy, X-ray diffraction, oxygen evolution potential and cyclic voltammetry tests. The results indicated that the Ti/Sb-SnO2-Eu&rGO electrodes have a compact structure and fine grain size and have a higher oxygen evolution overpotential than Ti/Sb-SnO2-None, Ti/Sb-SnO2-Eu and Ti/Sb-SnO2-rGO electrodes. Among the four electrodes, the Ti/Sb-SnO2-Eu&rGO electrode showed the highest efficiency and was chosen as the experimental electrode. The main influence factors on the degradation of clothianidin, such as initial pH, electrolyte concentration, current density and initial concentration of clothianidin, were analyzed. The results showed that the removal rate of clothianidin can reach 96.44% under the optimal conditions for 120 min treatment. Moreover, a possible degradation pathway including the fracture of internal bonds of clothianidin such as the N-N bond, the C-N bond that connects nitroguanidine to the thiazole ring and mineralization was elucidated by intermediate products identified by HPLC-MS method and Fourier transform infrared spectroscopy (FTIR). This paper introduces the Ti/Sb-SnO2-Eu&rGO electrode into an electrocatalytic degradation system and could provide basic data and technique support and guidance for the clothianidin wastewater pollution control.
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Affiliation(s)
- Dan Guo
- School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Yongbo Guo
- School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Yixuan Huang
- School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Yongyang Chen
- School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Xiaochun Dong
- School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Hao Chen
- School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Shanping Li
- School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China; Shandong Key Laboratory of Water Pollution Control and Resource Reuse, Qingdao, 266237, China.
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5
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Facile Synthesis of Tin Dioxide Nanoparticles for Photocatalytic Degradation of Congo Red Dye in Aqueous Solution. Catalysts 2020. [DOI: 10.3390/catal10070792] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
This research work reports an approach used to prepare a SnO2 photocatalyst by precipitation and calcination pathways and describes an investigation of the effects of preparation parameters on SnO2 yield. The SnO2 photocatalyst was further used for the photocatalytic degradation of Congo red (CR) dye, and the removal efficiency was optimized using response surface methodology. The results indicate that the SnO2 photocatalyst yield was the highest in 0.05 M of the precursor, stannous chloride and 28 wt % ammonia as the precipitant, pH 10, at 30 °C. The transmission electron microscopy results of the SnO2 photocatalyst illustrate that the average particle size was mainly around 30–50 nm and had a solid spherical shape. The X-ray diffraction results reveal that the prepared sample had a highly crystalline SnO2 rutile crystal structure. The prediction and experimental results of the Response surface methodology (RSM) indicate that, when the reaction time was 97 min, the operating temperature was 47 °C, the photocatalyst dosage was 751 mg/L, and the optimal degradation rate of the CR dye was 100%. After five consecutive photodegradation reactions, the degradation rate remained at 100%. The results demonstrated that the SnO2 photocatalyst prepared in this study possesses excellent reusability.
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6
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Lv XD, Yang SQ, Xue WJ, Cui YH, Liu ZQ. Performance of Cu-cathode/Fe 3+/peroxymonosulfate process on iohexol degradation. JOURNAL OF HAZARDOUS MATERIALS 2019; 366:250-258. [PMID: 30530016 DOI: 10.1016/j.jhazmat.2018.11.091] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Revised: 11/13/2018] [Accepted: 11/22/2018] [Indexed: 06/09/2023]
Abstract
Copper was used as a non-inert cathode material in a Cathode/Fe3+/peroxymonosulfate(PMS) system, and the performance of this novel Cu-cathode/Fe3+/PMS system was tested with a typical iodinated X-ray contrast media (iohexol) as target organics. The reaction mechanisms and the iohexol degradation pathways were investigated. The operational conditions of Cu-cathode/Fe3+/PMS process on iohexol degradation were optimized to be 1.0 mM Fe3+ dosage, 3.0 mM PMS dosage and 0.50 mA/cm2 of current input. The much lower current applied in the present study than previous reports would help to save energy and be more economical. Compared with typical inert cathode (Pt-cathode), the Cu-cathode/Fe3+/PMS process has better performance on both iohexol removal and deiodination, due to that Cu-cathode participated in Fe2+ regeneration and PMS activation via surface Cu°-Cu+(s)-Cu2+-Cu° redox cycle. Fe2+ could be produced via reactions between Fe3+ and Cu/Cu+(s) as well as cathodic reduction of Fe3+. SO4- was generated from PMS activation by Fe2+, Cu/Cu+(s) and cathodic reduction. OH was also generated in this process but SO4- played a dominant role in iohexol degradation. The intermediate products of iohexol and its transformation pathways were complex due to the varied reaction mechanisms involving both oxidation and reduction in Cu-cathode/Fe3+/PMS process.
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Affiliation(s)
- Xu-Dong Lv
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Hongshan District, Wuhan, 430074, PR China
| | - Sui-Qin Yang
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Hongshan District, Wuhan, 430074, PR China
| | - Wei-Jun Xue
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Hongshan District, Wuhan, 430074, PR China
| | - Yu-Hong Cui
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Hongshan District, Wuhan, 430074, PR China.
| | - Zheng-Qian Liu
- School of Environmental Science and Engineering, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Hongshan District, Wuhan, 430074, PR China
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7
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Li P, Bao Z, Wang G, Xu P, Wang X, Liu Z, Guo Y, Deng J, Zhang W. Ternary semiconductor metal oxide blends grafted Ag@AgCl hybrid as dimensionally stable anode active layer for photoelectrochemical oxidation of organic compounds: Design strategies and photoelectric synergistic mechanism. JOURNAL OF HAZARDOUS MATERIALS 2019; 362:336-347. [PMID: 30243257 DOI: 10.1016/j.jhazmat.2018.09.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 09/06/2018] [Accepted: 09/12/2018] [Indexed: 06/08/2023]
Abstract
The development of ultra-efficient, sustainable, and easily accessible anode with relative non-precious semiconducting metal oxides is highly significant for application in the practical treatment of organically polluted water. Herein, we report SnO2, TiO2, and Ag2O ternary semiconductor metal oxide blend grafted Ag@AgCl hybrids, prepared with the one-step sol-gel method and applied as a dimensionally stable anode (DSA)-active layer on a SnO2-Sb/Ti electrode. Factors affecting crystal formation, including the presence or absence of O2 during calcination, the calcination temperature, and Ag@AgCl additive dosage were discussed. The micromorphology, phase composition, and photoelectrochemical activity of the newly designed anode were comprehensively characterized. The optimized preparation, which yielded a solid-solution structure with flat and smooth surface and well-crystallized lattice configuration, occurred in the absence of O2 during calcination at 550 ℃ with an Ag@AgCl additive dosage of 0.2 g in the sol-gel precursor. The newly designed DSA displayed improved electrocatalysis (EC) and photoelectrical catalysis (PEC) capacity. The phenol and its TOC removal efficiency reached 90.65% and 58.17% for 10 mA/cm2 current density with a metal halide lamp in 3 h. The lifespan was four times that of SnO2-Sb/Ti electrode. This proposed DSA construction strategy may support improved EC and PEC reactivities toward the decomposition of organic pollutants.
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Affiliation(s)
- Peng Li
- State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China University of Technology, Nanchang City, Jiangxi 330013, PR China; School of Water Resource & Environmental Engineering, East China University of Technology, Nanchang City, Jiangxi 330013, PR China.
| | - Zhun Bao
- School of Water Resource & Environmental Engineering, East China University of Technology, Nanchang City, Jiangxi 330013, PR China
| | - Guanghui Wang
- State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China University of Technology, Nanchang City, Jiangxi 330013, PR China; School of Water Resource & Environmental Engineering, East China University of Technology, Nanchang City, Jiangxi 330013, PR China.
| | - Pengfei Xu
- School of Water Resource & Environmental Engineering, East China University of Technology, Nanchang City, Jiangxi 330013, PR China
| | - Xuegang Wang
- State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China University of Technology, Nanchang City, Jiangxi 330013, PR China; School of Water Resource & Environmental Engineering, East China University of Technology, Nanchang City, Jiangxi 330013, PR China
| | - Zhipeng Liu
- School of Water Resource & Environmental Engineering, East China University of Technology, Nanchang City, Jiangxi 330013, PR China
| | - Yadan Guo
- State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China University of Technology, Nanchang City, Jiangxi 330013, PR China; School of Water Resource & Environmental Engineering, East China University of Technology, Nanchang City, Jiangxi 330013, PR China
| | - Jing Deng
- College of Civil Engineering and Architecture, Zhejiang University of Technology, Hangzhou 310014, PR China
| | - Weimin Zhang
- State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China University of Technology, Nanchang City, Jiangxi 330013, PR China; School of Water Resource & Environmental Engineering, East China University of Technology, Nanchang City, Jiangxi 330013, PR China
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8
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Yang L, Zhang Z, Liu J, Huang L, Jia L, Feng Y. Influence of Gd Doping on the Structure and Electrocatalytic Performance of TiO2
Nanotube/SnO2
−Sb Nano-coated Electrode. ChemElectroChem 2018. [DOI: 10.1002/celc.201801079] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Lisha Yang
- State Key Laboratory of Urban Water Resource & Environment School of Environment; Harbin Institute of Technology Institution; Harbin 150090 PR China
| | - Zhaohan Zhang
- State Key Laboratory of Urban Water Resource & Environment School of Environment; Harbin Institute of Technology Institution; Harbin 150090 PR China
| | - Junfeng Liu
- State Key Laboratory of Urban Water Resource & Environment School of Environment; Harbin Institute of Technology Institution; Harbin 150090 PR China
| | - Linlin Huang
- State Key Laboratory of Urban Water Resource & Environment School of Environment; Harbin Institute of Technology Institution; Harbin 150090 PR China
| | - Liu Jia
- State Key Laboratory of Urban Water Resource & Environment School of Environment; Harbin Institute of Technology Institution; Harbin 150090 PR China
| | - Yujie Feng
- State Key Laboratory of Urban Water Resource & Environment School of Environment; Harbin Institute of Technology Institution; Harbin 150090 PR China
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9
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Asim S, Zhu Y, Batool A, Hailili R, Luo J, Wang Y, Wang C. Electrochemical treatment of 2, 4-dichlorophenol using a nanostructured 3D-porous Ti/Sb-SnO 2-Gr anode: Reaction kinetics, mechanism, and continuous operation. CHEMOSPHERE 2017; 185:11-19. [PMID: 28683332 DOI: 10.1016/j.chemosphere.2017.06.125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 06/28/2017] [Accepted: 06/29/2017] [Indexed: 06/07/2023]
Abstract
2, 4-dichlorophenol (2, 4-DCP) is considered to be a highly toxic, mutagenic, and possibly carcinogenic pollutant. This study is focused on the electrochemical oxidation of 2, 4-DCP on nanostructured 3D-porous Ti/Sb-SnO2-Gr anodes, with the aim of presenting a comprehensive elucidation of mineralization process through the investigation of influential kinetics, the reactivity of hydroxyl radical's and analysis of intermediates. High efficiency was achieved at pH of 3 using Na2SO4 electrolytes at a current density of 30 mA cm-2. Under the optimized conditions, a maximum removal of 2, 4-DCP of up to 99.9% was reached, whereas a TOC removal of 81% was recorded with the lowest ECTOC (0.49 kW h g-1) within 40 min of electrolysis. To explore the stability of the 3D-Ti/Sb-SnO2-Gr electrodes, a continuous electrochemical operation was established, and the consistent mineralization results indicated the effectiveness of the 3D-Ti/Sb-SnO2-Gr system concerning its durability and practical utilization. EPR studies demonstrated the abundant generation of OH radicals on 3D-Ti/Sb-SnO2-Gr, resulting in fast recalcitrant pollutant incineration. From dechlorination and the reactivity of the OH radicals, several intermediates including six cyclic byproducts and three aliphatic carboxylic acids were detected, and two possible degradation pathways were proposed that justify the complete mineralization of 2, 4-DCP.
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Affiliation(s)
- Sumreen Asim
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yunqing Zhu
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China.
| | - Aisha Batool
- University of Chinese Academy of Sciences, Beijing 100049, China; National Center for Nanoscience and Technology, 11 Zhongguancun Beiyitiao, Beijing, China
| | - Reshalaiti Hailili
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianmin Luo
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China; University of Chinese Academy of Sciences, Beijing 100049, China; Xinjiang Uygur Autonomous Region Academy of Instrument Analysis, Urumqi 830011, China
| | - Yuanhao Wang
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China
| | - Chuanyi Wang
- Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences, Urumqi 830011, China.
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10
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Li X, Xu H, Yan W, Shao D. Electrocatalytic degradation of aniline by Ti/Sb–SnO2, Ti/Sb–SnO2/Pb3O4 and Ti/Sb–SnO2/PbO2 anodes in different electrolytes. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.05.033] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Yao Y, Jiao L, Yu N, Guo F, Chen X. Comparison of electrocatalytic characterization of Ti/Sb-SnO2 and Ti/F-PbO2 electrodes. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-015-3053-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Al-Hamdi AM, Sillanpää M, Dutta J. Intermediate formation during photodegradation of phenol using lanthanum doped tin dioxide nanoparticles. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2197-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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13
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Duan T, Chen Y, Wen Q, Duan Y. Different mechanisms and electrocatalytic activities of Ce ion or CeO2 modified Ti/Sb–SnO2 electrodes fabricated by one-step pulse electro-codeposition. RSC Adv 2015. [DOI: 10.1039/c5ra01876e] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Nano-CeO2 doping mitigates the surface antimony enrichment and promotes the complete oxidation of antimony, while cerium ion doping aggravates these things.
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Affiliation(s)
- Tigang Duan
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
| | - Ye Chen
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
| | - Qing Wen
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
| | - Ying Duan
- Key Laboratory of Superlight Materials and Surface Technology of Ministry of Education
- College of Material Science and Chemical Engineering
- Harbin Engineering University
- Harbin
- China
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14
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Cui YH, Chen Q, Feng JY, Liu ZQ. Effectiveness of electrochemical degradation of sulfamethazine on a nanocomposite SnO2electrode. RSC Adv 2014. [DOI: 10.1039/c4ra04244a] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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15
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Chaplin BP. Critical review of electrochemical advanced oxidation processes for water treatment applications. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2014; 16:1182-203. [PMID: 24549240 DOI: 10.1039/c3em00679d] [Citation(s) in RCA: 250] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Electrochemical advanced oxidation processes (EAOPs) have emerged as novel water treatment technologies for the elimination of a broad-range of organic contaminants. Considerable validation of this technology has been performed at both the bench-scale and pilot-scale, which has been facilitated by the development of stable electrode materials that efficiently generate high yields of hydroxyl radicals (OH˙) (e.g., boron-doped diamond (BDD), doped-SnO2, PbO2, and substoichiometic- and doped-TiO2). Although a promising new technology, the mechanisms involved in the oxidation of organic compounds during EAOPs and the corresponding environmental impacts of their use have not been fully addressed. In order to unify the state of knowledge, identify research gaps, and stimulate new research in these areas, this review critically analyses published research pertaining to EAOPs. Specific topics covered in this review include (1) EAOP electrode types, (2) oxidation pathways of select classes of contaminants, (3) rate limitations in applied settings, and (4) long-term sustainability. Key challenges facing EAOP technologies are related to toxic byproduct formation (e.g., ClO4(-) and halogenated organic compounds) and low electro-active surface areas. These challenges must be addressed in future research in order for EAOPs to realize their full potential for water treatment.
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Affiliation(s)
- Brian P Chaplin
- Department of Chemical Engineering, University of Illinois at Chicago, 810 S. Clinton Ave., Chicago, IL 60607, USA.
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16
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Shao D, Yan W, Cao L, Li X, Xu H. High-performance Ti/Sb-SnO(2)/Pb(3)O(4) electrodes for chlorine evolution: preparation and characteristics. JOURNAL OF HAZARDOUS MATERIALS 2014; 267:238-244. [PMID: 24462893 DOI: 10.1016/j.jhazmat.2013.12.064] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2013] [Revised: 12/26/2013] [Accepted: 12/27/2013] [Indexed: 06/03/2023]
Abstract
Chlorine evolution via electrochemical approach has wide application prospects in drinking water disinfection and wastewater treatment fields. Dimensional stable anodes used for chlorine evolution should have high stability and adequate chlorine evolution efficiency. Thus a novel and cost-effective Ti/Sb-SnO(2)/Pb(3)O(4)electrode was developed. The physicochemical and electrochemical properties as well as the chlorine evolution performances of the electrodes were investigated. The electrocatalytic activity and deactivation course of the electrodes were also explored. Results showed that this novel electrode had strong chlorine evolution ability with high current efficiency ranging from 87.3% to 93.4% depending on the operational conditions. The accelerated service life of Ti/Sb-SnO(2)/Pb(3)O(4) electrode could reach 180 h at a current density of 10,000 A m(-2) in 0.5 molL(-1) H(2)SO(4). During the electrolysis process, it was found that the conversion of Pb(3)O(4) into β-PbO(2) happened gradually on the electrode surface, which not only inhibited the leakage of hazardous Pb(2+) ion but also increased the anti-corrosion capacity of the electrode effectively.
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Affiliation(s)
- Dan Shao
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Wei Yan
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China; Suzhou Academy of Xi'an Jiaotong University, Suzhou 215021, China.
| | - Lu Cao
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Xiaoliang Li
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China
| | - Hao Xu
- Department of Environmental Science and Engineering, Xi'an Jiaotong University, Xi'an 710049, China.
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