Reliable electrochemical sensing arsenic(III) in nearly groundwater pH based on efficient adsorption and excellent electrocatalytic ability of AuNPs/CeO2-ZrO2 nanocomposite

doi:10.1016/j.snb.2017.07.204

CAS OpenIR > 中科院上海应用物理研究所2011-2018年

	Reliable electrochemical sensing arsenic(III) in nearly groundwater pH based on efficient adsorption and excellent electrocatalytic ability of AuNPs/CeO2-ZrO2 nanocomposite
	Yang, M ; Li, PH ; Xu, WH ; Wei, Y ; Li, LN ; Huang, YY ; Sun, YF ; Chen, X ; Liu, JH ; Huang, XJ
	2018
发表期刊	SENSORS AND ACTUATORS B-CHEMICAL
ISSN	0925-4005
卷号	255 页码:226-234
文章类型	期刊论文
摘要	Even though electrochemical analytical tools have been widely investigated for toxic As(III) detection and the achievements have also been so fruitful. However, electroanalysis method with efficient and high anti interference toward As(III) in the original pH of natural water is still scarce and urgent. To this end, in this work, a sensing interface, which was fabricated with AuNPs/CeO2-ZrO2 nanocomposite modified glassy carbon electrode (GCE), was employed for sensitive and accurate analysis of As(III) in the nearly ground-water pH (according to a real groundwater sample collected from Guan Di Ying Village in Togtoh County, pH similar to 8.0) using square wave anodic stripping voltammetry (SWASV). Taking advantages of the strong adsorption ability of CeO2-ZrO2 nanospheres toward As(III) in the pH 8.0 media and the extremely good catalytic activity of AuNPs, under the optimum parameters, the sensitivity and the theoretical limit of detection on the electroanalysis of As(III) were 20.674 mu A ppb(-1) cm(-2) and 0.137 ppb, respectively. Moreover, the proposed method has relatively good anti-interference performance. Interesting, the probable reason for the enhanced sensitivity was tentatively confirmed using X-ray photoelectron spectroscopy (XPS). Finally, the practicability of the raised method has been preliminarily verified by the analysis of As(III) contaminated groundwater. (C) 2017 Elsevier B.V. All rights reserved.
关键词	Anodic-stripping Voltammetry Glassy-carbon Electrode Gold Nanoparticles Water Samples Trace Arsenic(Iii) Au Nanoparticles High-sensitivity Oxide Adsorbent One-pot Removal
DOI	10.1016/j.snb.2017.07.204
收录类别	SCI
语种	英语
WOS记录号	WOS:000414151800027
引用统计
文献类型	期刊论文
条目标识符	http://ir.sinap.ac.cn/handle/331007/29121
专题	中科院上海应用物理研究所2011-2018年
作者单位	1.Yang, M 2.Li, PH 3.Xu, WH 4.Wei, Y 5.Li, LN 6.Huang, YY 7.Sun, YF 8.Chen, X 9.Liu, JH 10.Huang, XJ
推荐引用方式 GB/T 7714	Yang, M,Li, PH,Xu, WH,et al. Reliable electrochemical sensing arsenic(III) in nearly groundwater pH based on efficient adsorption and excellent electrocatalytic ability of AuNPs/CeO2-ZrO2 nanocomposite[J]. SENSORS AND ACTUATORS B-CHEMICAL,2018,255:226-234.
APA	Yang, M.,Li, PH.,Xu, WH.,Wei, Y.,Li, LN.,...&Huang, XJ.(2018).Reliable electrochemical sensing arsenic(III) in nearly groundwater pH based on efficient adsorption and excellent electrocatalytic ability of AuNPs/CeO2-ZrO2 nanocomposite.SENSORS AND ACTUATORS B-CHEMICAL,255,226-234.
MLA	Yang, M,et al."Reliable electrochemical sensing arsenic(III) in nearly groundwater pH based on efficient adsorption and excellent electrocatalytic ability of AuNPs/CeO2-ZrO2 nanocomposite".SENSORS AND ACTUATORS B-CHEMICAL 255(2018):226-234.

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