基于纳米氧化锌-石墨复合材料的电化学传感器检测对苯二酚  

Electrochemical Sensor Based on Nano-ZnO-C Composite Materials for Determination of Hydroquinone

作　　者：娄童芳[1] 徐红杰 潘继民[3] 张炎[4] 雷红红 LOU Tongfang;XU Hongjie;PAN Jimin;ZHANG Yan;LEI Honghong(School of Material and Chemical Engineering,Kaifeng University,Kaifeng 475000,China;School of Materials,North China University of Water Resources and Electric Power,Zhengzhou 450001,China;School of Materials Science and Engineering,Zhengzhou University,Zhengzhou 450001,China;School of Materials Science and Engineering,Nanjing Institute of Technology,Nanjing 210000,China;Foguang Power Generation Equipment Co.,Ltd.,Zhengzhou 450001,China)

机构地区：[1]开封大学材料与化学工程学院,开封475000 [2]华北水利水电大学材料学院,郑州450001 [3]郑州大学材料科学与工程学院,郑州450001 [4]南京工程学院材料科学与工程学院,南京210000 [5]佛光发电设备股份有限公司,郑州450001

出　　处：《硅酸盐通报》2023年第8期3005-3016,共12页Bulletin of the Chinese Ceramic Society

基　　金：河南省科技攻关项目(222102230116,232102241036);开封市科技攻关项目(1903085)。

摘　　要：对苯二酚(HQ)作为一种稳定剂和抗氧剂主要应用于工业领域,工业废水中对苯二酚的残留对人体及环境危害严重,因此,建立一种简单、准确检测对苯二酚的方法对食品安全和环境监测具有重要意义。本文构建了纳米氧化锌-高纯石墨/玻碳(ZnO-C/GC)复合材料电化学传感器,实验材料简单易得,成本低。利用原子力显微镜(AFM)、场发射扫描电子显微镜(SEM)、X射线衍射(XRD)和电化学交流阻抗法(EIS)分析了纳米ZnO-C复合材料的结构特征、表面特征和导电性,采用循环伏安法(CV)实现了纳米ZnO-C/GC复合材料电化学传感器对对苯二酚的检测,探究了对苯二酚的电催化机理,该电化学传感器检测对苯二酚具有良好的稳定性和准确性,较宽的线性范围,检出限达到1.0×10^(-8)mol/L。Hydroquinone(HQ)was mainly used in the industrial field as a stabilizing agent and antioxygen.The residue of hydroquinone in industrial wastewater was seriously harmful to human body and environment.Therefore,it is of great significance to establish a simple and accurate method for the detection of hydroquinone for food safety and environmental monitoring.In this paper,a nano-zinc oxide-high purity graphite/glass carbon(ZnO-C/GC)composite electrochemical sensor was prepared.The experimental materials were simple and low cost.The structural characteristics,surface characteristics and conductivity of nano-ZnO-C composites material were analyzed by atomic force microscope(AFM),field emission scanning electron microscope(SEM),X-ray diffraction(XRD)and electrochemical AC impedance(EIS).Hydroquinone by cyclic voltammetry(CV)was used to realize the detection of hydroquinone by nano-ZnO-C/GC composite electrochemical sensor.The electrocatalytic mechanism of hydroquinone was explored.The electrochemical sensor has good stability and accuracy for the detection of hydroquinone,a wide linear range,and a detection limit of 1.0×10^(-8)mol/L.

关 键 词：纳米复合材料 电化学传感器 氧化锌 对苯二酚 电催化 

分 类 号：O657.1[理学—分析化学]