Enhanced electrochemical sensing arsenic(III) with excellent anti-interference using amino-functionalized graphene oxide decorated gold microelectrode: XPS and XANES evidence

doi:10.1016/j.snb.2017.01.139

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	Enhanced electrochemical sensing arsenic(III) with excellent anti-interference using amino-functionalized graphene oxide decorated gold microelectrode: XPS and XANES evidence
	Yang, M; Jiang, TJ; Wang, Y; Liu, JH; Li, LN; Chen, X; Huang, XJ
刊名	SENSORS AND ACTUATORS B-CHEMICAL
	2017
卷号	245 页码:230-237
关键词	Electrochemical Sensing Arsenic(Iii) Nh2-go Anti-interference Xps And Xanes
ISSN号	0925-4005
DOI	10.1016/j.snb.2017.01.139
文献子类	期刊论文
英文摘要	To date, the electrochemical method for efficient and accurate determination of As(III) in groundwater with interference-free is still a difficultly but significantly task. Herein, a reliable, high sensitive and excellent anti-interference electrochemical sensing As(III) with amino-functionalized graphene oxide (NH2-GO) decorated gold (Au) microelectrode was developed in mild media with square wave anodic stripping voltammeter (SWASV). Taking advantage of the synergy between the strong absorption capability of NH2-GO and the excellent electrocatalytic ability of Au microwire, the NH2-GO modified Au microelectrode exhibits the enhanced electrochemical performance toward As(III). No obvious interference from other commonly coexisting ions on the determination of As(III) was observed. Furthermore, the robust stability and reproducibility of the electrodes were obtained. Under the optimized conditions, the limit of detection (3 sigma method) toward As(III) was 0.162 ppb with a sensitivity of 130.631 mu A ppb(-1) cm(-2). Notably, the possible mechanism of the enhanced stripping signal was preliminarily explored by using X-ray photoelectron spectroscopy (XPS) and X-ray absorption near edge structure (XANES) techniques. Finally, the analytical application of the raised means on the detection of As(III) in Xingwangzhuang Village groundwater, Inner Mongolia, has been successfully verified. (C) 2017 Elsevier B.V. All rights reserved.
语种	英语
WOS记录号	WOS:000398760700029
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/27313]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 GB/T 7714	Yang, M,Jiang, TJ,Wang, Y,et al. Enhanced electrochemical sensing arsenic(III) with excellent anti-interference using amino-functionalized graphene oxide decorated gold microelectrode: XPS and XANES evidence[J]. SENSORS AND ACTUATORS B-CHEMICAL,2017,245:230-237.
APA	Yang, M.,Jiang, TJ.,Wang, Y.,Liu, JH.,Li, LN.,...&Huang, XJ.(2017).Enhanced electrochemical sensing arsenic(III) with excellent anti-interference using amino-functionalized graphene oxide decorated gold microelectrode: XPS and XANES evidence.SENSORS AND ACTUATORS B-CHEMICAL,245,230-237.
MLA	Yang, M,et al."Enhanced electrochemical sensing arsenic(III) with excellent anti-interference using amino-functionalized graphene oxide decorated gold microelectrode: XPS and XANES evidence".SENSORS AND ACTUATORS B-CHEMICAL 245(2017):230-237.