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题名:
Electrochemical determination of arsenic(III) with ultra-high anti-interference performance using Au-Cu bimetallic nanoparticles
作者: Yang, M; Guo, Z; Li, LN; Huang, YY; Liu, JH; Zhou, Q; Chen, X; Huang, XJ
刊名: SENSORS AND ACTUATORS B-CHEMICAL
出版日期: 2016
卷号: 231, 期号:-, 页码:70—78
关键词: GLASSY-CARBON ELECTRODES ; CATHODIC STRIPPING VOLTAMMETRY ; GOLD-COPPER NANOPARTICLES ; ONE-STEP SYNTHESIS ; ALLOY NANOPARTICLES ; SELECTIVE DETECTION ; FACILE SYNTHESIS ; TRACE AMOUNTS ; FORMIC-ACID ; OXIDATION
DOI: 10.1016/j.snb.2016.03.009
通讯作者: Chen, X ; Huang, XJ (reprint author), Chinese Acad Sci, Inst Intelligent Machines, Hefei 230031, Peoples R China.
文章类型: 期刊文献
英文摘要: Bimetallic nanoparticles provide a new opportunity for enhancing electrocatalytic activity because of some possible synergetic effects. In this study, different compositions of Au-Cu bimetallic nanoparticles are prepared via a simple hydrothermal method. The structure of Au-Cu bimetallic nanoparticles is characterized by using X-ray absorption fine structure (XAFS) techniques, X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). The correlations between electrochemical performance and the compositions of Au-Cu bimetallic nanoparticles on the determination of arsenic(III) are investigated through square wave anodic stripping voltammetry (SWASV). It is found that the amount of copper (Cu) in Au-Cu bimetallic nanoparticles is critical to the detection of arsenic(III). The XAFS results indicated that the Au-Au bond length (RAu-Au) can be influenced by the Cu concentration in the materials. Different RAu-Au of Au-Cu nanoparticles lead to the different electrochemical catalytic activity toward arsenic(III), further revealing the different electrochemical behavior. Compared with Au nanoparticles and commercial Au electrode, the Au-Cu bimetallic nanoparticles showed enhanced electrochemical performance with high sensitivity at ppb level, low detection limit. Moreover, the Au89Cu11 bimetallic nanoparticles exhibited ultra-high anti-interference performance on the detection of arsenic(III). (C) 2016 Elsevier B.V. All rights reserved.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000374330900009
ISSN号: 0925-4005
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25707
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Yang, M,Guo, Z,Li, LN,et al. Electrochemical determination of arsenic(III) with ultra-high anti-interference performance using Au-Cu bimetallic nanoparticles[J]. SENSORS AND ACTUATORS B-CHEMICAL,2016-01-01,231(-):70—78.
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