利用浸渍法和电化学还原法制备了纳米银石墨烯多壁碳纳米管复合修饰电极（AgNPs/GR/MWCNTs/GCE），采用循环伏安法（CV）表征了复合电极的电化学性能，研究了双酚A（BPA）在AgNPs/GR/MWCNTs/GCE上的电化学行为，并在此基础上使用差分脉冲伏安法（DPV）探讨了AgNPs/GR/MWCNTs/GCE检测BPA的可行性。结果表明，在8.0×10^-6~1.0×10^-4 mol/L范围内，BPA的电化学检测峰电流值与其浓度呈明显的线性关系，线性方程为I_p=1.076 1C-5.153 6，相关系数r=0.999 4。研究表明，AgNPs/GR/MWCNTs/GCE可用于BPA的电化学检测。

Nano-silver/graphene multi-walled carbon nanotube composite modified electrode (AgNPs/GR/MWCNTs/GCE) is prepared via impregnation method and electrochemical reduction method,and its electrochemical performance is characterized by cyclic voltammetry method.Electrochemical behavior of bisphenol A (BPA) on AgNPs/GR/MWCNTs/GCE is studied,and differential pulse voltammetry method is employed to explore the feasibility of using AgNPs/GR/MWCNTs/GCE to detect BPA.Results show that under the optimal conditions,the electrochemical detection peak current height of BPA has an obvious linear relationship with its concentration in the range of 8.0×10^-6-1.0×10^-4 mol·L^-1,with a linear equation of I_p=1.076 1C-5.153 6 and a correlation coefficient of 0.999 4.It is shown that AgNPs/GR/MWCNTs/GCE has a good response to the electrochemical detection of BPA and can be used for the detection of BPA.

秦洪伟(1983-),男,博士,副教授,研究方向为纳米修饰电极的制备和环境污染物及其毒性电化学检测方法研究,qinhongwei@bhu.edu.cn