Electrocatalytical oxidation of arsenite by reduced graphene oxide via in-situ electrocatalytic generation of H2O2

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境纳米材料实验室

	Electrocatalytical oxidation of arsenite by reduced graphene oxide via in-situ electrocatalytic generation of H2O2
	Li, Xuheng ; Liu, Feng ; Zhang, Weifang ; Lu, Hongbo ; Zhang, Jing
刊名	ENVIRONMENTAL POLLUTION
	2019-11-01
卷号	254 页码:-
关键词	Reduced graphene oxide Electrocatalysis H2O2 Oxidation Arsenite
ISSN号	0269-7491
英文摘要	Preoxidation of As(III) to As(V) is required for the efficient removal of total arsenic in the treatment of wastewater. In this work, the electro-Fenton oxidation of As(III) with a high efficiency was successfully achieved by using the system of the stainless steel net (SSN) coating with reduced graphene oxide (RGO@SSN) as the cathode and stainless steel net (SSN) as the sacrificial anode. The RGO@SSN was synthesized by electrophoretic deposition-annealing method. The carbon disorder and defects of RGO resulted from the remained oxygen-containing functional groups facilitated the electrocatalytically active sites for two-electron oxygen reduction reaction (ORR). A high concentration (up to 1000 mu mol/L) of H2O2 was in-situ produced through two-electron oxygen reduction reaction of electro-catalysis, and then served as the electro-Fenton reagent for the oxidation of As(III). HO center dot generated by H2O2 participating the electro-Fenton reaction or decomposed at the surface of RGO@SSN cathode at acid condition endowed the strong oxidizing ability for As(III). The electro-Fenton equipped with RGO@SSN cathode has a promising application in the oxidation and removal of organic or inorganic pollutants in wastewater. (C) 2019 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/43190]
专题	生态环境研究中心_环境纳米材料实验室
作者单位	1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Key Lab Environm Nanotechnol & Hlth Effect, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Natl Engn Lab VOCs Pollut Control Mat & Technol, Beijing 101408, Peoples R China
推荐引用方式 GB/T 7714	Li, Xuheng,Liu, Feng,Zhang, Weifang,et al. Electrocatalytical oxidation of arsenite by reduced graphene oxide via in-situ electrocatalytic generation of H2O2[J]. ENVIRONMENTAL POLLUTION,2019,254:-.
APA	Li, Xuheng,Liu, Feng,Zhang, Weifang,Lu, Hongbo,&Zhang, Jing.(2019).Electrocatalytical oxidation of arsenite by reduced graphene oxide via in-situ electrocatalytic generation of H2O2.ENVIRONMENTAL POLLUTION,254,-.
MLA	Li, Xuheng,et al."Electrocatalytical oxidation of arsenite by reduced graphene oxide via in-situ electrocatalytic generation of H2O2".ENVIRONMENTAL POLLUTION 254(2019):-.