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<p>In this research work, ZnO particles doped with CuO nanoparticles were synthesized via a green-mediated approach utilizing <i>Carica Papaya</i> extract through the co-precipitation method. The resulting ZnCuO nanocomposite demonstrated robust photocatalytic activity for the effective degradation of Rose Bengal (RB) dye. The main objectives of this study were to develop an eco-friendly synthesis method for ZnCuO nanocomposites using plant extract, characterize the structural, morphological, and optical properties of the synthesized nanocomposites, and evaluate their photocatalytic efficiency in degrading RB dye under visible light irradiation. Fourier Transform Infrared Spectroscopy (FT-IR), X-ray diffraction (XRD), Transmission Electron Microscopy (TEM), and Scanning Electron Microscopy (SEM) investigations were used to characterize the produced ZnCuO nanocomposite. TEM and SEM analyses revealed that the ZnCuO particles exhibited spherical morphologies with sizes ranging from 20 to 35&#xa0;nm and possessed excellent size homogeneity. The photocatalytic dye degradation efficiency of ZnCuO nanoparticles on Rose Bengal dye was evaluated through batch studies. The catalyst demonstrated excellent stability, maintaining over 91% degradation efficiency after eight consecutive cycles, indicating its potential for practical applications. This research demonstrates that RB dye, a major water pollutant released by textile industries, can be effectively photodegraded using green-synthesized ZnCuO nanoparticles.</p>

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Visible Light-Responsive Green Mediated Synthesized ZnCuO Nanocomposites: Characterization and Photocatalytic Application Toward the Degradation of Rose Bengal Dye

  • 期刊论文

  • 发表日期：

    2025年10月28日

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  • Janet Joshiba Ganesan,
  • Santhoshkumar Jayakodi,
  • P. Senthil Kumar,
  • Jia-Ren Chang Chien,
  • Venkatachalam Manikandan,
  • Jagadeesh Kumar Alagarasan,
  • Gayathri Rangasamy

摘要

In this research work, ZnO particles doped with CuO nanoparticles were synthesized via a green-mediated approach utilizing Carica Papaya extract through the co-precipitation method. The resulting ZnCuO nanocomposite demonstrated robust photocatalytic activity for the effective degradation of Rose Bengal (RB) dye. The main objectives of this study were to develop an eco-friendly synthesis method for ZnCuO nanocomposites using plant extract, characterize the structural, morphological, and optical properties of the synthesized nanocomposites, and evaluate their photocatalytic efficiency in degrading RB dye under visible light irradiation. Fourier Transform Infrared Spectroscopy (FT-IR), X-ray diffraction (XRD), Transmission Electron Microscopy (TEM), and Scanning Electron Microscopy (SEM) investigations were used to characterize the produced ZnCuO nanocomposite. TEM and SEM analyses revealed that the ZnCuO particles exhibited spherical morphologies with sizes ranging from 20 to 35 nm and possessed excellent size homogeneity. The photocatalytic dye degradation efficiency of ZnCuO nanoparticles on Rose Bengal dye was evaluated through batch studies. The catalyst demonstrated excellent stability, maintaining over 91% degradation efficiency after eight consecutive cycles, indicating its potential for practical applications. This research demonstrates that RB dye, a major water pollutant released by textile industries, can be effectively photodegraded using green-synthesized ZnCuO nanoparticles.