基于纳米银掺杂聚酰亚胺基过氧化氢传感器的制备  

Preparation of HO sensor based on Ag nanoparticle doped polyimide

作　　者：陈琳 王月[1] 胡知之[1] 鲁云华[1] 朱正意 朱凯 邢吉 Chen Lin;Wang Yue;Hu Zhizhi;Lu Yunhua;Zhu Zhengyi;Zhu Kai;Xing Ji(School of Chemical Engineering,Liaoning University of Science and Technology,Anshan 114051;College of Chemistry and Environmental Engineering,Yingkou Institute of Technology,Yingkou 115014)

机构地区：[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

出　　处：《化工新型材料》2021年第5期64-68,共5页New Chemical Materials

基　　金：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)。

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。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 0.01~28.88 mM,with a detection limit of 0.04 mM when the S/N was 3.The electrode exhibited high stability,great sensitivity,stable reproducibility and fast response time(less than 4 s).It shown that PI can be used as a performance reliable and long-life sensor for H2O2 detection,exhibiting a new application for PI.

关 键 词：聚酰亚胺 纳米银 过氧化氢 电化学测定 

分 类 号：O65[理学—分析化学]