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<p>This study aimed to optimize the photodegradation of methyl orange dye (MO) using reduced graphene oxide-supported zirconium oxide (ZrO<sub>2</sub>/rGO) nanocomposites. The morphological and structural properties of the synthesized samples were analyzed using various instruments, including X-ray diffraction, TEM,&#xa0;FTIR, Raman, BET, and FTIR. The inclusion of reduced graphene oxide (rGO) effectively constrained the substantial band gap of ZrO<sub>2</sub>, facilitating visible light absorption for photocatalytic applications. The photocatalytic degradation of MO dye was assessed using synthesized ZrO<sub>2</sub>/rGO nanocomposites under UV illumination. The photocatalytic activity was found to be satisfactory under optimal conditions, with a degradation percentage rate of 99% under ultraviolet light. Factors contributing to the improved efficiency include the oxygen-deficient metal oxide phase, increased surface area, and increased number of hydroxyl groups.</p>

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Photocatalytic activity of methyl orange degradation by Datura stramonium synthesized r-GO/ZrO2 nanocomposites

  • 期刊论文

  • 发表日期：

    2025年4月2日

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  • C. Amudha,
  • M. Santhi

摘要

This study aimed to optimize the photodegradation of methyl orange dye (MO) using reduced graphene oxide-supported zirconium oxide (ZrO2/rGO) nanocomposites. The morphological and structural properties of the synthesized samples were analyzed using various instruments, including X-ray diffraction, TEM, FTIR, Raman, BET, and FTIR. The inclusion of reduced graphene oxide (rGO) effectively constrained the substantial band gap of ZrO2, facilitating visible light absorption for photocatalytic applications. The photocatalytic degradation of MO dye was assessed using synthesized ZrO2/rGO nanocomposites under UV illumination. The photocatalytic activity was found to be satisfactory under optimal conditions, with a degradation percentage rate of 99% under ultraviolet light. Factors contributing to the improved efficiency include the oxygen-deficient metal oxide phase, increased surface area, and increased number of hydroxyl groups.