Improved electrochemical Cr(VI) detoxification by integrating the direct and indirect pathways
Jin, Wei1; Du, Hao1; Yan, Kai2; Zheng, Shili1; Zhang, Yi1
2016-08-15
发表期刊JOURNAL OF ELECTROANALYTICAL CHEMISTRY
ISSN1572-6657
卷号775期号:AUG页码:325-328
摘要Cr(VI) is classified as one of the 17 chemicals posing greatest threat towards humans, therefore considerable efforts have been made to reduce the Cr(VI) pollution. In this study, a novel integrated direct and indirect electrochemical Cr(VI) reduction was first reported for the highly efficient Cr(VI) detoxification. Through the controllable oxygen reduction reaction (ORR), the H2O2 was readily generated and employed as a mediator to synergistically improve the direct Cr(VI) reduction. A significant degradation enhancement was achieved from 37% to 100% within a fast 40 min treatment. Besides, there is an optimum pH condition for Cr(VI) reduction due to the competition between the mechanistic and kinetic consideration. This novel intensification approach provides new insight on the application of electrocatalysis in environmental remediation. (C) 2016 Elsevier B.V. All rights reserved.
关键词Hexavalent Chromium Indirect Reduction Oxygen Reduction Reaction Hydrogen Peroxide Integration
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.jelechem.2016.06.030
收录类别SCI
语种英语
关键词[WOS]HEXAVALENT CHROMIUM ; ORGANIC POLLUTANTS ; REDUCTION ; WATER ; REMEDIATION ; OXIDATION ; H2O2 ; SOLUBILITY ; TRIVALENT ; REMOVAL
WOS研究方向Chemistry ; Electrochemistry
WOS类目Chemistry, Analytical ; Electrochemistry
项目资助者National Basic Research Program of China (973 Program)(2013CB632601) ; Hundred Talents Program ; (KFA2015-239)
WOS记录号WOS:000381323100043
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/21283
专题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.Brown Univ, Sch Engn, Providence, RI 02912 USA
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Jin, Wei,Du, Hao,Yan, Kai,et al. Improved electrochemical Cr(VI) detoxification by integrating the direct and indirect pathways[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY,2016,775(AUG):325-328.
APA Jin, Wei,Du, Hao,Yan, Kai,Zheng, Shili,&Zhang, Yi.(2016).Improved electrochemical Cr(VI) detoxification by integrating the direct and indirect pathways.JOURNAL OF ELECTROANALYTICAL CHEMISTRY,775(AUG),325-328.
MLA Jin, Wei,et al."Improved electrochemical Cr(VI) detoxification by integrating the direct and indirect pathways".JOURNAL OF ELECTROANALYTICAL CHEMISTRY 775.AUG(2016):325-328.
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