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<p>In the present study, the in-situ chemical oxidative polymerization method was applied to create Polypyrrole (Ppy) supported iron molybdate (Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub>). The as-synthesized composite was characterized by different spectral and analytical techniques. The Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub>@Ppy composite revealed excellent photocatalytic degradation of Crystal Violet (CV) of more than 97% within 120&#xa0;min under visible light irradiation. Furthermore, the photocatalyst reusability was adequately studied for upto 4 cycles during its degradation process. The pseudo-first-order kinetics of the composite was found to be 0.0345&#xa0;min<sup>−1</sup>, which is comparatively 4.72 times faster than pristine Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub>. The quenching studies showed that hydroxy and superoxide radicals were essential for decolorizing the CV. The development of Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub>@Ppy composite with enhanced photocatalytic properties under visible light, offering an effective and sustainable approach for the degradation of environmental pollutants like crystal violet. The research suggests promising applications in light emitting diode (LED) ecological clean-up technologies. The outcomes of the present study reveal that the Fe<sub>2</sub>(MoO<sub>4</sub>)<sub>3</sub>@Ppy composite in its present form is a viable option for the highly effective degradation of wastewater containing dye pollutants.</p>

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Investigation of Fe2(MoO4)3@Ppy Composite for Effective Photocatalytic Degradation of Crystal Violet Under Visible Light

  • 期刊论文

  • 发表日期：

    2025年3月28日

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  • J. John Christopher,
  • S. Rajkumar,
  • I. Sharmila Lydia,
  • J. Princy Merlin

摘要

In the present study, the in-situ chemical oxidative polymerization method was applied to create Polypyrrole (Ppy) supported iron molybdate (Fe2(MoO4)3). The as-synthesized composite was characterized by different spectral and analytical techniques. The Fe2(MoO4)3@Ppy composite revealed excellent photocatalytic degradation of Crystal Violet (CV) of more than 97% within 120 min under visible light irradiation. Furthermore, the photocatalyst reusability was adequately studied for upto 4 cycles during its degradation process. The pseudo-first-order kinetics of the composite was found to be 0.0345 min−1, which is comparatively 4.72 times faster than pristine Fe2(MoO4)3. The quenching studies showed that hydroxy and superoxide radicals were essential for decolorizing the CV. The development of Fe2(MoO4)3@Ppy composite with enhanced photocatalytic properties under visible light, offering an effective and sustainable approach for the degradation of environmental pollutants like crystal violet. The research suggests promising applications in light emitting diode (LED) ecological clean-up technologies. The outcomes of the present study reveal that the Fe2(MoO4)3@Ppy composite in its present form is a viable option for the highly effective degradation of wastewater containing dye pollutants.