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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2023, Vol. 42 ›› Issue (8): 3005-3016.

• New Functional Materials • Previous Articles     Next Articles

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

LOU Tongfang1, XU Hongjie2, PAN Jimin3, ZHANG Yan4, LEI Honghong5   

  1. 1. School of Material and Chemical Engineering, Kaifeng University, Kaifeng 475000, China;
    2. School of Materials, North China University of Water Resources and Electric Power, Zhengzhou 450001, China;
    3. School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China;
    4. School of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 210000, China;
    5. Foguang Power Generation Equipment Co., Ltd., Zhengzhou 450001, China
  • Received:2023-05-14 Revised:2023-06-24 Published:2023-08-18

Abstract: 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.

Key words: nanocomposite material, electrochemical sensor, zinc oxide, hydroquinone, electrocatalysis

CLC Number: