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<p>Photocatalysis has emerged as a significant approach for tackling environmental challenges, particularly in removing dye pollutants from water. However, a major obstacle to enhancing the efficiency of photocatalysts is the fast recombination of charge carriers, which hampers the degradation of pollutants. Here, we present a novel hybrid photocatalyst composed of BaTiO<sub>3</sub> nanoparticles and WO<sub>3</sub> nanorods, designed to enhance the dye degradation in visible light. Our study shows that the sample with 5.0 wt% BaTiO<sub>3</sub> (W/BT5) demonstrates significantly better performance than pure WO<sub>3</sub>, BaTiO<sub>3</sub>, and all other composites. W/BT5 enhances the degradation of rhodamine B (RhB) by 1.25 times and methylene blue (MB) by 1.38 times compared to WO<sub>3</sub> alone. This improvement is attributed to the well-aligned band structures, which promote effective separation and movement of the photogenerated charge carriers. Our findings introduce a new strategy for boosting the activity of photocatalysts through hybrid composites, paving the way for more efficient environmental remediation technologies.</p>

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Photocatalytic degradation of rhodamine B and methylene blue dyes using tungsten oxide/barium titanate nanocomposite

  • 期刊论文

  • 发表日期：

    2025年4月12日

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  • Richa Kumari,
  • Naman Chandrakar,
  • Deepika Choudhary,
  • Debanjan Guin,
  • Chandra Shekhar Pati Tripathi

摘要

Photocatalysis has emerged as a significant approach for tackling environmental challenges, particularly in removing dye pollutants from water. However, a major obstacle to enhancing the efficiency of photocatalysts is the fast recombination of charge carriers, which hampers the degradation of pollutants. Here, we present a novel hybrid photocatalyst composed of BaTiO3 nanoparticles and WO3 nanorods, designed to enhance the dye degradation in visible light. Our study shows that the sample with 5.0 wt% BaTiO3 (W/BT5) demonstrates significantly better performance than pure WO3, BaTiO3, and all other composites. W/BT5 enhances the degradation of rhodamine B (RhB) by 1.25 times and methylene blue (MB) by 1.38 times compared to WO3 alone. This improvement is attributed to the well-aligned band structures, which promote effective separation and movement of the photogenerated charge carriers. Our findings introduce a new strategy for boosting the activity of photocatalysts through hybrid composites, paving the way for more efficient environmental remediation technologies.