还原氧化石墨烯-多壁碳纳米管复合膜负载金纳米粒子修饰玻碳电极检测双酚A

引用本文: 于浩, 冯晓, 陈小霞, 乔金丽, 高小玲, 徐娜, 高楼军. 还原氧化石墨烯-多壁碳纳米管复合膜负载金纳米粒子修饰玻碳电极检测双酚A[J]. 分析化学, 2017, 45(5): 713-720. doi: 10.11895/j.issn.0253-3820.160768 shu

Citation: YU Hao, FENG Xiao, CHEN Xiao-Xia, QIAO Jin-Li, GAO Xiao-Ling, XU Na, GAO Lou-Jun. Electrochemical Determination of Bisphenol A on a Glassy Carbon Electrode Modified with Gold Nanoparticles Loaded on Reduced Graphene Oxide-Multi-Walled Carbon Nanotubes Composite[J]. Chinese Journal of Analytical Chemistry, 2017, 45(5): 713-720. doi: 10.11895/j.issn.0253-3820.160768 shu

还原氧化石墨烯-多壁碳纳米管复合膜负载金纳米粒子修饰玻碳电极检测双酚A

于浩 ^1,2, ,
冯晓 ^1, ,
陈小霞 ^1, ,
乔金丽 ^1, ,
高小玲 ^1, ,
徐娜 ^1, ,
高楼军 ^1,2,

1.
延安大学化学与化工学院, 延安 716000;
2.
陕西省化学反应工程重点实验室, 延安 716000
基金项目:
本文系延安市科技局工业攻关项目（No.2014KG-01），陕西省教育厅专项科研基金（No. 14JK1832）资助

摘要: 以水合肼为还原剂，采用均相还原法制备还原氧化石墨烯-多壁碳纳米管复合材料（rGO-MWCNTs），通过滴涂法将其修饰到玻碳电极（GCE）表面。以此复合材料为载体，采用电化学方法制备了金纳米粒子-还原氧化石墨烯-多壁碳纳米管复合膜修饰电极（AuNPs-rGO-MWCNTs/GCE）。通过扫描电镜（SEM）、EDS能谱技术和电化学方法对此电极进行了表征。研究了双酚A在修饰电极上的电化学行为。结果表明，此电极对双酚A的电极过程具有良好的电化学活性，在0.10 mol/L PBS溶液（pH 7.0）中，微分脉冲伏安法测定双酚A的线性范围为5.0 × 10^-9~1.0 × 10^-7 mol/L和1.0 × 10^-7~2.0 × 10^-5 mol/L，检出限为1.0 ×10^-9 mol/L（S/N=3）。将此电极用于模拟水样和超市购物小票样品中双酚A含量的测定，加标回收率分别为97%~110%和98%~104%。

关键词:

English

Electrochemical Determination of Bisphenol A on a Glassy Carbon Electrode Modified with Gold Nanoparticles Loaded on Reduced Graphene Oxide-Multi-Walled Carbon Nanotubes Composite

1.
College of Chemistry and Chemical Engineering, Yan'an University, Yan'an 716000, China;
2.
Shaanxi Key Laboratory of Chemical Reaction Engineering, Yan'an 716000, China
Received Date: 19 October 2016
Revised Date: 15 January 2017

Abstract: A glassy carbon electrode (GCE) modified with gold nanoparticles loading on the reduced graphene oxide (rGO)-multi-walled carbon nanotubes (MWCNTs) composite film was fabricated by a two-step procedure. Firstly, rGO-MWCNTs composite were prepared by in-situ chemical reduction method with hydrazine as a reducing agent. Then, AuNPs were deposited on the surface of rGO-MWCNTs using simple cyclic voltammetry. This modified electrode was characterized using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and electrochemical methods. Furthermore, the electrochemical behavior of bisphenol A (BPA) was also investigated using this modified electrode. The results showed that the modified electrode had high electrochemical activity for the oxidation of BPA. In 0.10 mol/L phosphate buffer solution (PBS, pH 7.0), the linear range for the determination of BPA with differential pulse voltammetry (DPV) was in the range of 5.0 × 10^-9 -1.0 × 10^-7 mol/L and 1.0 × 10^-7-2.0 × 10^-5 mol/L. The detection limit was 1.0 × 10^-9 mol/L (S/N=3). The as-prepared modified electrode was successfully used to determine BPA in river water and the shopping receipt samples with recovery ranges of 97%-110% and 98%-104%, respectively.

Key words:

Gold nanoparticles
/ Reduced oxide graphene/multi-walled carbon nanotubes composite
/ Electrochemical sensor
/ Bisphenol A

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沈阳化工大学材料科学与工程学院沈阳 110142

还原氧化石墨烯-多壁碳纳米管复合膜负载金纳米粒子修饰玻碳电极检测双酚A

English

Electrochemical Determination of Bisphenol A on a Glassy Carbon Electrode Modified with Gold Nanoparticles Loaded on Reduced Graphene Oxide-Multi-Walled Carbon Nanotubes Composite

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通讯作者: 陈斌, bchen63@163.com

中国化学会秘书处

还原氧化石墨烯-多壁碳纳米管复合膜负载金纳米粒子修饰玻碳电极检测双酚A

English

Electrochemical Determination of Bisphenol A on a Glassy Carbon Electrode Modified with Gold Nanoparticles Loaded on Reduced Graphene Oxide-Multi-Walled Carbon Nanotubes Composite

CCS Chemistry：嵌段共聚物自组装成 “三明治”二维有机材料，实现纳米级压力传感功能

CCS Chemistry：颜徐州、鲍哲南： 你的皮肤可能是一片SPMs

CCS Chemistry：工作高效不疲劳，只须让催化剂动起来

CCS Chemistry：静电组装导向聚合- 聚电解质纳米凝胶量化制备新策略

CCS Chemistry：金黄色葡萄球菌醛基脱氢酶是如何识别特异性底物的？

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通讯作者: 陈斌, bchen63@163.com

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