新材料与新技术

基于纳米银掺杂聚酰亚胺基过氧化氢传感器的制备

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  • 1.辽宁科技大学 化学工程学院,鞍山114051;
    2.营口理工学院 化学与环境工程学院,营口115014
陈琳(1984-),女,讲师,主要从事有机功能材料及电化学传感器研究。

收稿日期: 2020-02-06

  修回日期: 2021-03-04

  网络出版日期: 2021-06-10

基金资助

2019辽宁省自然科学基金指导计划项目(2019-ZD-0371);2019营口理工学院大学生创新创业训练计划项目(201914435058);2018年营口理工学院院级科研项目(QNL201804)

Preparation of H2O2 sensor based on Ag nanoparticle doped polyimide

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  • 1. School of Chemical Engineering,Liaoning University of Science and Technology, Anshan 114051;
    2. College of Chemistry and Environmental Engineering,Yingkou Institute of Technology,Yingkou 115014

Received date: 2020-02-06

  Revised date: 2021-03-04

  Online published: 2021-06-10

摘要

制备了一种新型的基于纳米银粒子和聚酰亚胺复合修饰玻碳电极的过氧化氢非酶传感器,用扫描电子显微镜和原子力显微镜对修饰电极表面的结构和形貌进行了表征,采用循环伏安法和电流法对该传感器的电化学性能进行了评价。结果发现,在最佳条件下,该传感器校准曲线在0.01~28.88mmol/L范围内呈线性关系,信噪比 S/N=3时检出限为0.04mmol/L。所制备的电极具有稳定性高、灵敏度高和响应时间短(<4s)等优点。由此可见,聚酰亚胺可以作为一种性能可靠、使用寿命长的过氧化氢传感器检测材料。该研究成果也为聚酰亚胺在电化学方向的发展开辟了新路径。

本文引用格式

陈琳, 王月, 胡知之, 鲁云华, 朱正意, 朱凯, 邢吉 . 基于纳米银掺杂聚酰亚胺基过氧化氢传感器的制备[J]. 化工新型材料, 2021 , 49(5) : 64 -68 . DOI: 10.19817/j.cnki.issn 1006-3536.2021.05.015

Abstract

A novel non-enzymatic sensor for the detection of hydrogen peroxide(H2O2) was prepared.It is based on a polyimide(PI) and Ag nanoparticle composite modified glassy carbon electrode.The structure and morphology of the modified electrode surface were characterized by scanning electron microscopy and atomic force microscopy.The electrochemical performance of the sensor was evaluated by cyclic voltammetry and amperometry.The results showed that under optimum conditions,the calibration plot were linear in the range of 0.01~28.88mM,with a detection limit of 0.04mM when the S/N was 3.The electrode exhibited high stability,great sensitivity,stable reproducibility and fast response time (less than 4s).It shown that PI can be used as a performance reliable and long-life sensor for H2O2 detection,exhibiting a new application for PI.

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