Scholarlink

<p>The development of environmentally friendly and highly efficient materials is critical for next-generation antibacterial and optoelectronic applications. In this study, we present the successful synthesis of a novel lead-free perovskite, KCsSnI<sub>1.7</sub>Cl<sub>1.3</sub>, via a rapid and scalable chemical bath deposition method at 150&#xa0;°C for just 5&#xa0;min. The resulting film features well-defined orthorhombic, pyramid-like crystals with uniform grain sizes (800–1000&#xa0;nm) and a compact, pinhole-free morphology. Remarkably, the material exhibits strong optical absorption up to 800&#xa0;nm, positioning it as a promising candidate for hot electron generation and light-driven applications. KCsSnI<sub>1.7</sub>Cl<sub>1.3</sub> also demonstrated outstanding antibacterial performance, showing broad-spectrum activity against multiple bacterial strains. The highest inhibition was recorded against <i>Staphylococcus aureus</i>, with inhibition zones increasing from 17&#xa0;mm in the dark to 35&#xa0;mm under UV illumination—highlighting its efficient photocatalytic response. The antibacterial effect followed the order: <i>S. aureus</i> &gt; <i>B. subtilis</i> &gt; <i>E. coli</i> &gt; <i>Salmonella</i> sp., and was significantly enhanced with increasing concentrations (100–400 ppm). No inhibition was observed in control wells, confirming the selective activity of the material. With its lead-free composition, strong light-harvesting ability, and exceptional antibacterial properties, KCsSnI<sub>1.7</sub>Cl<sub>1.3</sub> emerges as a highly promising material for future applications in antibacterial coatings, water purification systems, and advanced optoelectronic devices. Its green synthesis, scalability, and multifunctionality offer a sustainable pathway toward real-world deployment in environmental and biomedical fields.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Lead-free perovskite KCsSnI1.7Cl1.3 material exhibiting superior photocatalytic antimicrobial activity

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年9月1日

查看全文
  • Ahmed M. Mahmoud,
  • Canan Can,
  • Mohamed Rabia

摘要

The development of environmentally friendly and highly efficient materials is critical for next-generation antibacterial and optoelectronic applications. In this study, we present the successful synthesis of a novel lead-free perovskite, KCsSnI1.7Cl1.3, via a rapid and scalable chemical bath deposition method at 150 °C for just 5 min. The resulting film features well-defined orthorhombic, pyramid-like crystals with uniform grain sizes (800–1000 nm) and a compact, pinhole-free morphology. Remarkably, the material exhibits strong optical absorption up to 800 nm, positioning it as a promising candidate for hot electron generation and light-driven applications. KCsSnI1.7Cl1.3 also demonstrated outstanding antibacterial performance, showing broad-spectrum activity against multiple bacterial strains. The highest inhibition was recorded against Staphylococcus aureus, with inhibition zones increasing from 17 mm in the dark to 35 mm under UV illumination—highlighting its efficient photocatalytic response. The antibacterial effect followed the order: S. aureus > B. subtilis > E. coli > Salmonella sp., and was significantly enhanced with increasing concentrations (100–400 ppm). No inhibition was observed in control wells, confirming the selective activity of the material. With its lead-free composition, strong light-harvesting ability, and exceptional antibacterial properties, KCsSnI1.7Cl1.3 emerges as a highly promising material for future applications in antibacterial coatings, water purification systems, and advanced optoelectronic devices. Its green synthesis, scalability, and multifunctionality offer a sustainable pathway toward real-world deployment in environmental and biomedical fields.