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Sensitive Electrochemical Detection of Bisphenol A Using Molybdenum Disulfide/Au Nanorod Composites Modified Glassy Carbon Electrode
Author(s) -
Wang Mingxia,
Shi Yifei,
Zhang Yubin,
Wang Yang,
Huang Huayu,
Zhang Jiangyi,
Song Jinxi
Publication year - 2017
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201700411
Subject(s) - molybdenum disulfide , materials science , differential pulse voltammetry , detection limit , bisphenol a , electrode , cyclic voltammetry , bisphenol s , electrochemistry , electrochemical gas sensor , bisphenol , glassy carbon , voltammetry , chemical engineering , composite material , chemistry , chromatography , epoxy , engineering
Bisphenol A, an important compound that is classified as an environmental hormone, has been proven to have harmful effects on human health and ecology. A molybdenum disulfide/Au nanorod‐modified glassy carbon electrode was prepared as an electrochemical sensor for the detection of bisphenol A using a simple and convenient approach. UV–Vis spectrophotometry and transmission electron microscopy were employed to characterize the composite. The electrochemical behavior of bisphenol A at the modified electrode was investigated via differential pulse voltammetry and cyclic voltammetry. The results show that bisphenol A exhibits a good electrochemical signal at the modified electrode under optimized conditions, and a good linear relationship was observed between the bisphenol A concentration and peak current within the range of 0.01–50 μM, with a detection limit of 3.4 nM. Furthermore, the fabricated electrodes showed good anti‐interference, reproducibility and stability. The proposed electrochemical method was successfully applied for the detection of bisphenol A in milk and water samples, and its potential for applications in pollutant detection was demonstrated.