Peroxymonosulfate enhanced photoelectrocatalytic degradation of phenol activated by Co3O4 loaded carbon fiber cathode
文献类型:期刊论文
作者 | Wang, Yanbin; Qiao, Meng; Zhao, Shen; Wang, Yan; Liu, Shanshan; Zhao, Xu; Shao, Huixin |
刊名 | JOURNAL OF CATALYSIS
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出版日期 | 2017-11-01 |
卷号 | 355期号:0页码:167-175 |
关键词 | Photoelectrocatalysis Peroxymonosulfate Co3o4 Sulfate Radicals |
英文摘要 | In this paper, a photoelectrocatalytic (PEC) system consisting of gamma-Bi2MoO6 anode and Co3O4 loaded carbon fiber paper (Co3O4/CFP) cathode prepared by a hydrothermal method was established and used to degrade phenol. In order to enhance the PEC degradation efficiency of phenol, peroxymonosulfate (PMS) was introduced into this system. At an applied bias of 1.5 V, the removal efficiency of 10 mg/L phenol was increased from 6% to 100% with 2 mM PMS addition into the PEC process. The degradation rate constant of phenol was also increased to be 0.0496 min(-1). Effects of PMS concentration, applied bias and initial pH were investigated. Based on the ESR analysis, sulfate radicals (SO4.-) and hydroxyl radicals (Ho.) were proved to be the dominant oxidizing species for phenol degradation in the combined system. The PMS was activated to generate SO4.- by loaded Co3O4, in which photogenerated-electrons accelerated the cobalt cycle process on the cathode. As a result, Co leaching was largely inhibited. The stability of the PEC system for organics degradation was exhibited. (C) 2017 Elsevier Inc. All rights reserved. |
源URL | [http://ir.rcees.ac.cn/handle/311016/39724] ![]() |
专题 | 生态环境研究中心_中国科学院饮用水科学与技术重点实验室 |
推荐引用方式 GB/T 7714 | Wang, Yanbin,Qiao, Meng,Zhao, Shen,et al. Peroxymonosulfate enhanced photoelectrocatalytic degradation of phenol activated by Co3O4 loaded carbon fiber cathode[J]. JOURNAL OF CATALYSIS,2017,355(0):167-175. |
APA | Wang, Yanbin.,Qiao, Meng.,Zhao, Shen.,Wang, Yan.,Liu, Shanshan.,...&Shao, Huixin.(2017).Peroxymonosulfate enhanced photoelectrocatalytic degradation of phenol activated by Co3O4 loaded carbon fiber cathode.JOURNAL OF CATALYSIS,355(0),167-175. |
MLA | Wang, Yanbin,et al."Peroxymonosulfate enhanced photoelectrocatalytic degradation of phenol activated by Co3O4 loaded carbon fiber cathode".JOURNAL OF CATALYSIS 355.0(2017):167-175. |
入库方式: OAI收割
来源:生态环境研究中心
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