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<p>This study aims to enhance photocatalytic performance of tin sulfide thin films through different doping concentrations. To validate this hypothesis, iron (Fe) was added into Sn₂S₃ and the influence of different doping levels on photocatalytic performance was examined. Furthermore, the impact of Fe doping on the structural, optical, and surface morphological characteristics of Sn₂S₃ was examined, and the findings correlated with the observed enhancement in photocatalytic activity. The concentration of Fe was kept at 0, 1, 2 and 3 wt%. Among these Fe doping levels, 2 wt% exhibits superior photocatalytic activity when compared to other samples and exhibits substantial degradation efficacy against MV and MO within 60&#xa0;min, with 97% and 93%, respectively. The effects of dye adsorption, point of zero charge, and dye solution pH on the catalytic activity of superior catalyst films were investigated and compared to their counterparts.</p>

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Optimizing Fe incorporation in Sn₂S₃ films for superior solar light-induced photocatalytic activity

  • 期刊论文

  • 发表日期：

    2026年2月23日

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  • B. Mohanavel,
  • K. Kesavan,
  • N. Siva Jyothi,
  • J. Srivind

摘要

This study aims to enhance photocatalytic performance of tin sulfide thin films through different doping concentrations. To validate this hypothesis, iron (Fe) was added into Sn₂S₃ and the influence of different doping levels on photocatalytic performance was examined. Furthermore, the impact of Fe doping on the structural, optical, and surface morphological characteristics of Sn₂S₃ was examined, and the findings correlated with the observed enhancement in photocatalytic activity. The concentration of Fe was kept at 0, 1, 2 and 3 wt%. Among these Fe doping levels, 2 wt% exhibits superior photocatalytic activity when compared to other samples and exhibits substantial degradation efficacy against MV and MO within 60 min, with 97% and 93%, respectively. The effects of dye adsorption, point of zero charge, and dye solution pH on the catalytic activity of superior catalyst films were investigated and compared to their counterparts.