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
2017
发表期刊SENSORS AND ACTUATORS B-CHEMICAL
ISSN0925-4005
卷号245页码:230-237
文章类型期刊论文
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.
关键词Electrochemical Sensing Arsenic(Iii) Nh2-go Anti-interference Xps And Xanes
DOI10.1016/j.snb.2017.01.139
收录类别SCI
语种英语
WOS记录号WOS:000398760700029
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/27313
专题中科院上海应用物理研究所2011-2018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.
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