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In situ anodic induction of low-valence copper in electro-Fenton system for effective nitrobenzene degradation
Wang, Yunting1,2; Zhang, Gong2; Xue, Yudong3; Tang, Jiawei1; Shi, Xuelu1; Zhang, Chunhui1
2019-11-01
Source PublicationENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN0944-1344
Volume26Issue:31Pages:32165-32174
AbstractTo achieve superior advanced oxidation processes (AOPs), transitional state activators are of great significance for the production of active radicals by H2O2, while instability limits their activation efficiency. In this study, density functional theory calculation (DFT) results showed that Cu+ exhibits excellent H2O2 activation performance, with Gibbs free energy change (Delta G) of 33.66 kcal/mol, two times less than that of Cu2+ (77.83 kcal/mol). Meanwhile, an electro-Fenton system using Cu plate as an anode was proposed for in situ generation of Cu+. The released Cu with low-valence state can be well-confined on the surface of the exciting electrode, which was confirmed by X-ray photoelectron spectroscopy (XPS), Raman, and UV-vis spectroscopy. The hydroxyl radicals in this Cu-based electro-Fenton system were determined by the electron spin resonance (ESR). The nitrobenzene degradation ratio was greatly increased by 43.90% with the introduction of the proposed in situ electrochemical Cu+ generation process. Various characterization results indicated that the production of Cu+ was the key factor in the highly efficient Cu-based electro-Fenton reaction.
KeywordElectrochemical advanced oxidation processes Transitional state Copper Electro-Fenton Nitrobenzene
DOI10.1007/s11356-019-06387-1
Language英语
WOS KeywordELECTROCHEMICAL ADVANCED OXIDATION ; HYDROGEN-PEROXIDE ; MESOPOROUS SILICA ; COMPOSITE CATHODE ; RHODAMINE-B ; WASTE-WATER ; H2O2 ; CARBON ; REACTIVITY ; EFFICIENT
Funding ProjectResearch Fund of Major Science and Technology Program for Water Pollution Control and Treatment[2017ZX07402001]
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
Funding OrganizationResearch Fund of Major Science and Technology Program for Water Pollution Control and Treatment
WOS IDWOS:000500201200048
PublisherSPRINGER HEIDELBERG
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/38353
Collection中国科学院过程工程研究所
Corresponding AuthorXue, Yudong; Zhang, Chunhui
Affiliation1.China Univ Min & Technol Beijing, Sch Chem & Environm Engn, Beijing 100083, Peoples R China
2.Tsinghua Univ, Ctr Water & Ecol, State Key Joint Lab Environm Simulat & Pollut Con, Sch Environm, Beijing 100084, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Wang, Yunting,Zhang, Gong,Xue, Yudong,et al. In situ anodic induction of low-valence copper in electro-Fenton system for effective nitrobenzene degradation[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2019,26(31):32165-32174.
APA Wang, Yunting,Zhang, Gong,Xue, Yudong,Tang, Jiawei,Shi, Xuelu,&Zhang, Chunhui.(2019).In situ anodic induction of low-valence copper in electro-Fenton system for effective nitrobenzene degradation.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,26(31),32165-32174.
MLA Wang, Yunting,et al."In situ anodic induction of low-valence copper in electro-Fenton system for effective nitrobenzene degradation".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 26.31(2019):32165-32174.
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