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<p>In this study, Hummer’s method was modified to synthesize graphene oxide (GO). GO-based nanocomposites GO/ZnO, GO/MoO<sub>3</sub>, and GO/ZnO/MoO<sub>3</sub> were synthesized using co-precipitation and solid-state reaction methods. The prepared GO and nanocomposites were characterized using UV-Visible spectroscopy, scanning electron microscopy (SEM), Raman spectroscopy, and X-ray diffraction (XRD). SEM images showed distinct morphological differences among GO, GO/ZnO, and GO/MoO<sub>3</sub>, while UV-Visible and Raman spectroscopy demonstrated the influence of ZnO and MoO<sub>3</sub> on the optical properties and interactions of GO. Using visible light irradiation, photocatalytic degradation studies showed improved results for the GO/MoO<sub>3</sub> nanocomposites. The 93% degradation of methylene blue (MB) achieved by GO/MoO<sub>3</sub> after 280&#xa0;minutes was greater than that of GO/ZnO/MoO<sub>3</sub> (92% degradation at 360&#xa0;minutes) and GO/ZnO (93% degradation at 340&#xa0;minutes) within the same period. High efficiency photodegradation of methylene blue (MB) under visible light irradiation of GO/MoO<sub>3</sub> nanocomposites were shown by these findings, demonstrating their strong potential for environmental remediation applications.</p>

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Graphene-Based Multi-Nanocomposites: Synthesis, Characterization and Photodegradation Analysis

  • 期刊论文

  • 发表日期：

    2025年2月2日

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  • Adeeba Sadia,
  • Muhammad Irshad,
  • Muhammad Faran Akhtar,
  • Shaukat Ali,
  • Muhammad Summer

摘要

In this study, Hummer’s method was modified to synthesize graphene oxide (GO). GO-based nanocomposites GO/ZnO, GO/MoO3, and GO/ZnO/MoO3 were synthesized using co-precipitation and solid-state reaction methods. The prepared GO and nanocomposites were characterized using UV-Visible spectroscopy, scanning electron microscopy (SEM), Raman spectroscopy, and X-ray diffraction (XRD). SEM images showed distinct morphological differences among GO, GO/ZnO, and GO/MoO3, while UV-Visible and Raman spectroscopy demonstrated the influence of ZnO and MoO3 on the optical properties and interactions of GO. Using visible light irradiation, photocatalytic degradation studies showed improved results for the GO/MoO3 nanocomposites. The 93% degradation of methylene blue (MB) achieved by GO/MoO3 after 280 minutes was greater than that of GO/ZnO/MoO3 (92% degradation at 360 minutes) and GO/ZnO (93% degradation at 340 minutes) within the same period. High efficiency photodegradation of methylene blue (MB) under visible light irradiation of GO/MoO3 nanocomposites were shown by these findings, demonstrating their strong potential for environmental remediation applications.