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[1]张子俊,李　慧,张媛媛,等.基于纳米钯/石墨烯增敏效应对双酚A的电化学检测[J].武汉工程大学学报,2017,39(01):5-11.[doi:10. 3969/j. issn. 1674?2869. 2017. 01. 002]
　ZHANG Zijun,LI Hui,ZHANG Yuanyuan,et al.Bisphenol A Based on Enhancement Effect of Palladium Nanoparticle/Graphene[J].Journal of Wuhan Institute of Technology,2017,39(01):5-11.[doi:10. 3969/j. issn. 1674?2869. 2017. 01. 002]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
39
期数:
2017年01期
页码:
5-11
栏目:
化学与化学工程
出版日期:
2017-03-29

文章信息/Info

Title:
Bisphenol A Based on Enhancement Effect of Palladium Nanoparticle/Graphene
作者:
张子俊; 李　慧; 张媛媛; 杨年俊; 万其进*
武汉工程大学化学与环境工程学院，湖北 武汉 430074
Author(s):
ZHANG Zijun;  LI Hui;  ZHANG Yuanyuan;  YAN Nianjun;  WAN Qijin*
School of Chemistry and Environmental Engineering， Wuhan Institute of Technology， Wuhan 430074， China
关键词:
钯纳米颗粒; 石墨烯; 壳聚糖; 双酚A; 修饰电极
Keywords:
graphene;  palladium nanoparticles;  chitosan;  bisphenol A;  modified electrode
分类号:
O657.1
DOI:
10. 3969/j. issn. 1674?2869. 2017. 01. 002
文献标志码:
A
摘要:
利用纳米钯/石墨烯材料构建一种测定双酚A的高灵敏电化学传感器. 本实验在石墨烯基底上电沉积钯纳米颗粒，得到纳米钯/石墨烯-壳聚糖复合物修饰玻碳电极（Pd/GR-Chit/GCE），并通过扫描电子显微镜和电化学技术对其进行表征. 研究了双酚A（BPA）在Pd/GR-Chit/GCE上的电化学行为，发现其氧化峰电流在Pd/GR-Chit/GCE表面得到显著的增强，表明修饰电极对BPA表现出明显的电催化效果. 优化了钯纳米颗粒的沉积条件、石墨烯的滴涂量、pH值、富集电位和富集时间等测定参数，建立了一种快速简便测定BPA电化学新方法，实验结果显示，在pH 7的磷酸盐缓冲溶液中，BPA峰电流与其浓度在1.0×10-7 mol/L~6.0×10-5 mol/L范围内呈良好的线性关系，检测限可达到1.0×10-8 mol/L.
Abstract:
A highly-sensitive electrochemcial sensor was developed for the determination of bisphenol A （BPA） using palladium nanoparticle/graphene materials. Graphene were applied as the support to electrodeposit palladium nanoparticles， obtaining palladium nanoparticle/graphene-chitosan modified electrode （Pd/GR-Chit/GCE）， which was characterized by scanning electron microscopy and electrochemical techniques. The electrochemical behaviors of BPA were studied， and the oxidation peak currents increased greatly on the surface of Pd/GR-Chit/GCE， indicating that Pd/GR-Chit has significant electrocatalytic effect toward the oxidation of BPA. The experiment parameters including deposition potential for Pd nanoparticles， modifier amount of graphene， pH value， accumulation potential and accumulation time were optimized， developing a novel， rapid and simple electrochemical method for the determination of BPA. It was found that the peak current of BPA is linear with its concentration over the range from 1.0×10-7 mol/L to 6.0×10-5 mol/L， and the detection limit is 1.0×10-8 mol/L.

参考文献/References:

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更新日期/Last Update: 2017-02-22