Efficient oxidative dissolution of V2O3 by the in situ electro-generated reactive oxygen species on N-doped carbon felt electrodes | |
Xue, Yudong1,2; Wang, Yunting1,3; Zheng, Shili1; Sun, Zhi1; Zhang, Yi1; Jin, Wei1 | |
刊名 | ELECTROCHIMICA ACTA
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2017-02-01 | |
卷号 | 226页码:140-147 |
关键词 | Reactive Oxygen Species Vanadium Dissolution Hydroxyl Radical Alkaline Media Electro-fenton-like |
ISSN号 | 0013-4686 |
DOI | 10.1016/j.electacta.2017.01.001 |
文献子类 | Article |
英文摘要 | Oxidative dissolution is a critical step for the efficient remediation of heavy metal oxides in large-scale solid wastes. In the present study, a novel electro-oxidative dissolution process of V2O3 to VO43- is achieved by the in-situ generated reactive oxygen species on the N-doped carbon felt cathode in alkaline media. The electro-catalytic HO2- generation and hydrophilic behavior were significantly enhanced by the introduction of nitrogen-containing functional groups. Besides, the mechanism of electrochemical vanadium conversion is systematically illustrated, and a vanadium self-induced electro-Fenton-like reaction is proposed. By employing the radical quenching and ESR measurements, the contributions for V (III) dissolution is determined to be 43.5% by HO2- and 56.5% by hydroxyl radicals, respectively. It should be noted that the V2O3 solid particles can be efficiently dissolved via adsorption-reaction scheme on the carbon felt electrode. This novel electrochemical strategy provides a promising solution for the heavy metal oxide treatment and further understanding for the in situ reactive oxygen species. (C) 2017 Elsevier Ltd. All rights reserved. |
WOS关键词 | Electrochemical Cr(Iii) Oxidation ; Fenton Process ; Reduction Reaction ; Organic Pollutants ; Graphite Felt ; Diffusion Cathode ; Alkaline-solution ; Aqueous-solution ; Nanotube Arrays ; Graphene Oxide |
WOS研究方向 | Electrochemistry |
语种 | 英语 |
WOS记录号 | WOS:000394081700017 |
资助机构 | National Natural Science Foundation of China(51604253 ; CAS Pioneer Hundred Talents Program ; National Basic Research Program of China (973 Program)(2013CB632601 ; 51274179) ; 2013CB632605) |
内容类型 | 期刊论文 |
源URL | [http://ir.ipe.ac.cn/handle/122111/22006] ![]() |
专题 | 过程工程研究所_湿法冶金清洁生产技术国家工程实验室 |
作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.China Univ Min & Technol Beijing, Sch Chem & Environm Engn, Beijing 100083, Peoples R China |
推荐引用方式 GB/T 7714 | Xue, Yudong,Wang, Yunting,Zheng, Shili,et al. Efficient oxidative dissolution of V2O3 by the in situ electro-generated reactive oxygen species on N-doped carbon felt electrodes[J]. ELECTROCHIMICA ACTA,2017,226:140-147. |
APA | Xue, Yudong,Wang, Yunting,Zheng, Shili,Sun, Zhi,Zhang, Yi,&Jin, Wei.(2017).Efficient oxidative dissolution of V2O3 by the in situ electro-generated reactive oxygen species on N-doped carbon felt electrodes.ELECTROCHIMICA ACTA,226,140-147. |
MLA | Xue, Yudong,et al."Efficient oxidative dissolution of V2O3 by the in situ electro-generated reactive oxygen species on N-doped carbon felt electrodes".ELECTROCHIMICA ACTA 226(2017):140-147. |
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