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<p>In this study, an efficient binary Sb<sub>2</sub>O<sub>3</sub>/SnS and ternary Ag@Sb<sub>2</sub>O<sub>3</sub>/SnS photocatalysts were synthesized by hydrothermal method and deposition method respectively. Photocatalysts were analyzed for their optical properties, morphological characteristics, crystalline structures, dynamics of charge recombination, chemical compositions, surface charge and electrochemical properties. Photocatalytic performance of constructed materials was nanocomposites was examined on antibiotic Ciprofloxacin (CP) and Rhodamine B (RhB) in illumination of visible radiance. Ag (4 wt%)@Sb<sub>2</sub>O<sub>3</sub>/SnS (2 wt%) exhibited highest photocatalytic decontamination efficiency due to formation of heterojunctions in Sb<sub>2</sub>O<sub>3</sub>/SnS which facilitate effective separation of charges and increase light harvesting and further, deposition of Ag on Sb<sub>2</sub>O<sub>3</sub>/SnS boosts photocatalytic performance to a higher extent owing to localized surface plasmon resonance (LSPR). The role of trapping agents during the degradation process of RhB and CP was also studied. Density Functional Theory (DFT) examination reveals that composite formation is energetically more favorable than bare materials and has better electronic properties. Electrochemical analysis was executed by Electrochemical impedance spectra (EIS) and Cyclic Voltammetry (CV) which supported lower charge resistance after the construction of nanocomposite. The present work highlights the potential of fabricated Ag@Sb<sub>2</sub>O<sub>3</sub>/SnS photocatalysts for cost-effective applications in environmental remediation.</p>

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Structural, electrochemical and DFT analysis of Ag@ Sb2O3/SnS nanocomposite: exploration of enhanced visible light driven photocatalysis for organic pollutant decontamination

  • 期刊论文

  • 发表日期：

    2026年4月13日

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  • Shruti Jain,
  • Naveen Kumar,
  • Anuradha Sharma,
  • Sahil,
  • Peter R. Makgwane,
  • Muhammad Tahir,
  • Pankaj Raizda,
  • Jogender,
  • Deepak Parmar

摘要

In this study, an efficient binary Sb2O3/SnS and ternary Ag@Sb2O3/SnS photocatalysts were synthesized by hydrothermal method and deposition method respectively. Photocatalysts were analyzed for their optical properties, morphological characteristics, crystalline structures, dynamics of charge recombination, chemical compositions, surface charge and electrochemical properties. Photocatalytic performance of constructed materials was nanocomposites was examined on antibiotic Ciprofloxacin (CP) and Rhodamine B (RhB) in illumination of visible radiance. Ag (4 wt%)@Sb2O3/SnS (2 wt%) exhibited highest photocatalytic decontamination efficiency due to formation of heterojunctions in Sb2O3/SnS which facilitate effective separation of charges and increase light harvesting and further, deposition of Ag on Sb2O3/SnS boosts photocatalytic performance to a higher extent owing to localized surface plasmon resonance (LSPR). The role of trapping agents during the degradation process of RhB and CP was also studied. Density Functional Theory (DFT) examination reveals that composite formation is energetically more favorable than bare materials and has better electronic properties. Electrochemical analysis was executed by Electrochemical impedance spectra (EIS) and Cyclic Voltammetry (CV) which supported lower charge resistance after the construction of nanocomposite. The present work highlights the potential of fabricated Ag@Sb2O3/SnS photocatalysts for cost-effective applications in environmental remediation.