• 文献标题:   Development of Electrochemical Sensor Based on Graphene Oxide Electrode Modified by Silver-Doped ZnO Nanorods for Detection of Carbamate Pesticide in Food
  • 文献类型:   Article
  • 作  者:   WANG CY, SONG Q, LIU XQ, ZHU XW
  • 作者关键词:   graphene oxide electrode, agdoped zno nanorod, differential pulse voltammetry, carbamate pesticide, cyclic voltammetry
  • 出版物名称:   INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
  • ISSN:   1452-3981
  • 通讯作者地址:   Jilin Engn Normal Univ
  • 被引频次:   0
  • DOI:   10.20964/2020.06.74
  • 出版年:   2020

▎ 摘  要

A facile approach was used to develop a novel electrochemical sensor based on graphene oxide (GO)/glassy carbon electrode (GCE) modified by silver (Ag)-doped ZnO nanorods for the determination of carbamate pesticides (CP). The electrochemical deposition technique was used to fabricate the proposed electrode, and scanning electron microscopy and energy dispersive X-ray spectroscopy were carried out to characterize the electrode surface morphology and determine the elements present in the sample, which confirmed the successful formation of Ag-doped ZnO nanorods. The electrochemical properties were considered by differential pulse voltammetry (DPV) and cyclic voltammetry. Due to the good conductivity and strong catalytic activity of Ag-doped ZnO nanorods, the developed sensor revealed a limit of detection as low as 0.34 nML(-1) by DPV, indicating a good stability, acceptable reproducibility and selectivity and great potential in determination of CP compounds in foodstuffs.