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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
Source PublicationJOURNAL OF ELECTROANALYTICAL CHEMISTRY
ISSN1572-6657
Volume775Issue:AUGPages:325-328
AbstractCr(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.
KeywordHexavalent Chromium Indirect Reduction Oxygen Reduction Reaction Hydrogen Peroxide Integration
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.jelechem.2016.06.030
Indexed BySCI
Language英语
WOS KeywordHEXAVALENT CHROMIUM ; ORGANIC POLLUTANTS ; REDUCTION ; WATER ; REMEDIATION ; OXIDATION ; H2O2 ; SOLUBILITY ; TRIVALENT ; REMOVAL
WOS Research AreaChemistry ; Electrochemistry
WOS SubjectChemistry, Analytical ; Electrochemistry
Funding OrganizationNational Basic Research Program of China (973 Program)(2013CB632601) ; Hundred Talents Program ; (KFA2015-239)
WOS IDWOS:000381323100043
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21283
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.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
Recommended Citation
GB/T 7714
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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