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<p>Plasmonic Ag-doped BiOCl nanoparticles were synthesized by a simple co-precipitation method to evaluate their photocatalytic performance. The localized surface plasmon resonance (LSPR) effect of Ag nanoparticles significantly enhanced light harvesting and charge separation, improving photocatalytic activity. Structural, morphological, and spectral analysis were conducted using UV-visible, FTIR, PL, SEM, EDX, and XRD. The optimal sample had an average crystalline size of 44&#xa0;nm and exhibited an asymmetric tetragonal structure. Ag doping reduced the band gap to approximately 3.07&#xa0;eV, facilitating better charge transfer and decreasing electron-hole recombination. The smaller nanoparticle size increased the surface-to-volume ratio, providing more active sites for photocatalysis. This catalyst achieved 89% degradation efficiency of methyl orange dye within 120&#xa0;min. Recycling and trapping experiments confirmed the catalyst’s stability. Additionally, both pure and Ag-doped BiOCl demonstrated effective antibacterial activity. The results indicate that the plasmonic Ag-doped BiOCl photocatalyst is a promising candidate for efficient wastewater treatment and antimicrobial applications.</p> Graphical Abstract <p></p>

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Plasmonic Silver Doped Bismuth Oxychloride Nanostructures for Enhanced Photocatalytic Applications

  • 期刊论文

  • 发表日期：

    2025年11月6日

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  • Tahir Iqbal,
  • Nafeesa,
  • Sumera Afsheen,
  • Muhammad Yousaf,
  • Saheem Ahmad,
  • Bodor Bin sheeha,
  • Omar W. Althomail,
  • Safia Obaidur Rab,
  • Muhammad Tauseef Qureshi

摘要

Plasmonic Ag-doped BiOCl nanoparticles were synthesized by a simple co-precipitation method to evaluate their photocatalytic performance. The localized surface plasmon resonance (LSPR) effect of Ag nanoparticles significantly enhanced light harvesting and charge separation, improving photocatalytic activity. Structural, morphological, and spectral analysis were conducted using UV-visible, FTIR, PL, SEM, EDX, and XRD. The optimal sample had an average crystalline size of 44 nm and exhibited an asymmetric tetragonal structure. Ag doping reduced the band gap to approximately 3.07 eV, facilitating better charge transfer and decreasing electron-hole recombination. The smaller nanoparticle size increased the surface-to-volume ratio, providing more active sites for photocatalysis. This catalyst achieved 89% degradation efficiency of methyl orange dye within 120 min. Recycling and trapping experiments confirmed the catalyst’s stability. Additionally, both pure and Ag-doped BiOCl demonstrated effective antibacterial activity. The results indicate that the plasmonic Ag-doped BiOCl photocatalyst is a promising candidate for efficient wastewater treatment and antimicrobial applications.

Graphical Abstract