文档介绍：
半胱氨酸-铅纳米线作为模板电化学合成聚
吡咯#
刘勇,张翠婷,钱和,庞月红,沈晓芳**
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(江南大学食品学院,江苏无锡 214122)
摘要:本文发展了一种采用半胱氨酸-铅自组装纳米线作为模板,通过电化学合成聚吡咯的
方法。采用扫描电子显微镜(SEM)、傅里叶转变红外光谱仪(FTIR)对所制备聚吡咯的
结构和组成进行表征。并用多环芳烃人体暴露的生物标志物 1-羟基芘验证其催化活性。结
果表明,1-羟基芘在模板法合成的聚吡咯修饰电极上的响应电流信号强度显著高于直接电化
学合成的聚吡咯修饰电极。
关键词:聚吡咯;半胱氨酸-铅;模板法;电聚合
中图分类号:TQ
Electropolymerization of polypyrrole using cysteine-Pb as
template
LIU Yong, ZHANG Cuiting, QIAN He, PANG Yuehong, SHEN Xiaofang
(School of Food Science And Technology, Jiangnan University, JiangSu WuXi 214122)
Abstract: Electropolymerization of polypyrrole (PPy) using cysteine-Pb nanowires as template
was introduced in this paper. As-prepared PPy was characterized by scanning electronic
microscopy (SEM) and Fourier-transform infrared spectra (FTIR). The catalytic activity of PPy
modified electrode was measured by cyclic voltammetric (CV) technique. The results show that
the current response of 1-hydroxyrene (1-OHP),a widely used biomarker for evaluation of
polycyclic aromatic hydrocarbons (PAHs) exposure,at template-based electropolymerization of
PPy modified electrode is considerably larger than that of direct electropolymerized electrode.
Keywords: polypyrrole; cysteine-Pb; template-based method; electropolymerization
0 引言
电化学方法合成聚吡咯是通过电化学阳极氧化吡咯单体聚合而成,一般利用恒电位、恒
电流和循环伏安法,通过控制电化学氧化聚合条件(如吡咯单体的电解液、支持电解质和溶
剂、聚合电势、电量等)可以得到具有各种不同性质的膜[1-2]。电化学合成的