气候变化领域集成服务门户(CCPortal): Sustainable and feasible reagent-free electro-Fenton via sequential dual-cathode electrocatalysis

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DOI	10.1073/pnas.2108573118
	Sustainable and feasible reagent-free electro-Fenton via sequential dual-cathode electrocatalysis
	Wang J.; Li S.; Qin Q.; Peng C.
发表日期	2021
ISSN	0027-8424
卷号	118 期号:34
英文摘要	Electro-Fenton processes aim at producing oxidizing radicals with fewer added chemicals and residues but are still unable to completely eliminate both. This study demonstrates that a reagent-free electro-Fenton process that runs solely on oxygen and electricity can be achieved by sequential dual-cathode electrocatalysis. H2O2 is produced on an electrodeposited PEDOT on carbon cloth (PEDOT/CC) cathode and subsequently converted to hydroxyl radicals on a stainless-steel–mesh cathode. The dual-cathode system demonstrates efficient decolorization and total organic carbon (TOC) removal toward organic dyes at optimized cathodic potentials of -0.9 V for PEDOT/CC and -0.8 V for the stainless-steel mesh. The sequential dual-cathode process also displays high reusability, no iron leaching, high removal efficiency using air instead of oxygen, and low installation and operation costs. This work demonstrates a preeminent and commercially viable example of pollution control rendered by the “catalysis instead of chemical reagent” philosophy of green chemistry. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	Dual-cathode electrocatalysis; Dye degradation; Electro-Fenton; Hydroxyl radical; Sequential oxygen reduction
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/238418
作者单位	School of Resource and Environmental Sciences, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan University, Wuhan, 430072, China
推荐引用方式 GB/T 7714	Wang J.,Li S.,Qin Q.,et al. Sustainable and feasible reagent-free electro-Fenton via sequential dual-cathode electrocatalysis[J],2021,118(34).
APA	Wang J.,Li S.,Qin Q.,&Peng C..(2021).Sustainable and feasible reagent-free electro-Fenton via sequential dual-cathode electrocatalysis.Proceedings of the National Academy of Sciences of the United States of America,118(34).
MLA	Wang J.,et al."Sustainable and feasible reagent-free electro-Fenton via sequential dual-cathode electrocatalysis".Proceedings of the National Academy of Sciences of the United States of America 118.34(2021).