C-C Bonding of Graphene Oxide on 4-Aminophenyl Modified Gold Electrodes towards Simultaneous Detection of Heavy Metal Ions

被引：23
作者：
Zhang, Yin [1 ]
Qi, Meng [1 ]
Liu, Guozhen [1 ]
机构：
[1] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China
来源：
ELECTROANALYSIS | 2015年 / 27卷 / 05期
基金：
中国国家自然科学基金;
关键词：
Aryldiazonium salts; Graphene oxide; Electrochemical sensors; Heavy metal ions; MODIFIED GLASSY-CARBON; VOLTAMMETRIC DETERMINATION; ADSORPTION; PLATFORM; SENSORS; NANOCOMPOSITE; NANOPARTICLES; BIOSENSORS; CADMIUM; SURFACE;
D O I：
10.1002/elan.201400591
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This paper studied the electrochemical sensors based on C-C bonding of graphene oxide (GO) pi-conjugated aromatic group modified gold electrodes for simultaneous detection of heavy metal ions. For comparison, another sensing interface Au-Ph-NH-CO-GO, in which GO was modified to Au-Ph-NH2 interfaces by amide bonding. On the basis of the principle of heavy metal ions complexation with oxygenated species on GO, the fabricated sensing interfaces were used for the simultaneous determination of Pb2+, Cu2+ and Hg2+. The performance of two sensing interfaces for simultaneous detection of three metal ions was compared. Au-Ph-GO sensing interface demonstrated higher sensitivity and better repeatability than Au-Ph-NH-CO-GO sensing interface.
引用
收藏
页码：1110 / 1118
页数：9
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