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<p>In this study, zinc oxide decorated Ti<sub>3</sub>C<sub>2</sub> MXene composites with different ZnO to MXene ratios were synthesized and investigated as electrocatalysts for electrocatalytic degradation of Bisphenol A (BPA). The ZnO/MXene composites were synthesized using the in-situ precipitation method and extensively characterized via various spectroscopic and microscopic techniques, including Fourier Transform Infrared Spectroscopy (FTIR), Field Emission Scanning Electron Microscopy (FE-SEM), X-ray Photoelectron Spectroscopy (XPS), Energy-Dispersive X-ray Spectroscopy (EDX), Ultraviolet-Visible Spectroscopy, X-ray Diffraction (XRD), and Raman spectroscopy. The superior electrical conductivity of MXene and the electrocatalytic properties of ZnO contribute to the electrocatalytic activity of the ZnO/MXene composite. The electrochemical behavior of the fabricated ZnO/MXene electrode towards BPA detection was systematically investigated using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The results demonstrate the linear oxidation peak current response for BPA detection in the range of 0.01–0.3 µM (R<sup>2</sup>= 0.99). The developed ZnO/MXene sensor exhibited outstanding stability, reproducibility, and a limit of detection (LOD) of 0.1 nM for BPA. Furthermore, the proposed ZnO/MXene electrode successfully detected BPA in spiked water samples, highlighting its potential for monitoring BPA content in packaged drinking water.</p>

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Rationalizing ZnO/MXene composites as electrode materials for the electrochemical detection of bisphenol A in water

  • 期刊论文

  • 发表日期：

    2025年7月30日

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  • Keerthana Sahadevan,
  • Mari Vinoba,
  • Soon Kwan Jeong,
  • Margandan Bhagiyalakshmi

摘要

In this study, zinc oxide decorated Ti3C2 MXene composites with different ZnO to MXene ratios were synthesized and investigated as electrocatalysts for electrocatalytic degradation of Bisphenol A (BPA). The ZnO/MXene composites were synthesized using the in-situ precipitation method and extensively characterized via various spectroscopic and microscopic techniques, including Fourier Transform Infrared Spectroscopy (FTIR), Field Emission Scanning Electron Microscopy (FE-SEM), X-ray Photoelectron Spectroscopy (XPS), Energy-Dispersive X-ray Spectroscopy (EDX), Ultraviolet-Visible Spectroscopy, X-ray Diffraction (XRD), and Raman spectroscopy. The superior electrical conductivity of MXene and the electrocatalytic properties of ZnO contribute to the electrocatalytic activity of the ZnO/MXene composite. The electrochemical behavior of the fabricated ZnO/MXene electrode towards BPA detection was systematically investigated using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The results demonstrate the linear oxidation peak current response for BPA detection in the range of 0.01–0.3 µM (R2= 0.99). The developed ZnO/MXene sensor exhibited outstanding stability, reproducibility, and a limit of detection (LOD) of 0.1 nM for BPA. Furthermore, the proposed ZnO/MXene electrode successfully detected BPA in spiked water samples, highlighting its potential for monitoring BPA content in packaged drinking water.