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

Adeeba Sadia1, Muhammad Irshad2, Muhammad Faran Akhtar1

  • 1Department of Chemistry, University of Kotli, Azad Jammu and Kashmir, Kotli, 11100, Pakistan.

Journal of Fluorescence
|February 2, 2025
PubMed
Summary

Graphene oxide nanocomposites, particularly GO/MoO3, show high efficiency in degrading methylene blue under visible light. These advanced materials offer promising solutions for environmental remediation applications.

Keywords:
GOGO/MoO3GO/ZnOGO/ZnO/MoO3Photodegradation

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Area of Science:

  • Materials Science
  • Environmental Science
  • Nanotechnology

Background:

  • Graphene oxide (GO) is a versatile material with potential applications in catalysis.
  • Developing efficient photocatalysts for environmental remediation is crucial.
  • Nanocomposites can enhance the properties of base materials like GO.

Purpose of the Study:

  • To synthesize and characterize GO-based nanocomposites (GO/ZnO, GO/MoO3, GO/ZnO/MoO3).
  • To evaluate the photocatalytic activity of these nanocomposites for methylene blue degradation under visible light.
  • To investigate the influence of ZnO and MoO3 on GO's optical properties and interactions.

Main Methods:

  • Modified Hummer's method for GO synthesis.
  • Co-precipitation and solid-state reaction methods for nanocomposite synthesis.
  • Characterization using UV-Visible spectroscopy, SEM, Raman spectroscopy, and XRD.
  • Photocatalytic degradation studies under visible light irradiation.

Main Results:

  • SEM revealed distinct morphologies for GO, GO/ZnO, and GO/MoO3.
  • Spectroscopic analyses confirmed the influence of ZnO and MoO3 on GO's optical properties.
  • GO/MoO3 nanocomposites exhibited superior photocatalytic degradation of methylene blue (93% in 280 minutes).
  • GO/ZnO and GO/ZnO/MoO3 also showed significant degradation efficiencies.

Conclusions:

  • GO/MoO3 nanocomposites demonstrate high efficiency for methylene blue photodegradation under visible light.
  • These materials show significant potential for environmental remediation applications.
  • The incorporation of metal oxides enhances the photocatalytic performance of graphene oxide.