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<p>This study examines the synthesis and characterization of antimony oxide (Sb<sub>2</sub>O<sub>3</sub>) nanoparticle and its combination with chitosan (Cs) to make Sb<sub>2</sub>O<sub>3</sub>-Cs nanocomposites. The green chemistry method of the Sb<sub>2</sub>O<sub>3</sub> nanoparticles synthesis was supported by the <i>Actinidia deliciosa</i> (kiwi) extract that serves as reducing agent and stabilizing agent. The nanoparticles obtained were characterized by Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX) analysis, X-ray Diffraction (XRD), and Fourier Transform Infrared Spectroscopy (FTIR) to study their morphology, elemental composition, crystallinity and functional groups respectively. The SEM images indicated a more compact, heterogeneous structure when the Sb<sub>2</sub>O<sub>3</sub> nanoparticles were incorporated into the chitosan matrix to form Sb<sub>2</sub>O<sub>3</sub>-Cs nanocomposites, with the nanoparticles uniformly distributed in the chitosan matrix. XRD results established the formation of a pure senarmontite cubic phase of Sb<sub>2</sub>O<sub>3</sub> in pure nanoparticles and nanocomposites. The findings indicated that the dispersion of Sb<sub>2</sub>O<sub>3</sub> nanoparticles was highly enhanced by the presence of chitosan and this minimized aggregation and increased the stability of the material. The synthesized materials were tested against <i>Staphylococcus aureus</i> and <i>Escherichia coli</i> by zone of inhibition (ZOI) method of antibacterial activity as well as tested for photocatalytic degradation of rhodamine-B (rhB) under visible light. This study explains that Sb<sub>2</sub>O<sub>3</sub> nanoparticles, and Sb<sub>2</sub>O<sub>3</sub>-Cs nanocomposites, possess significant potential in biomedical and pollution remediation applications.</p>

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Actinidia Deliciosa mediated synthesis of antimony oxide nanoparticles and their incorporation into chitosan matrix for enhanced antibacterial and photocatalytic activity

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月21日

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  • Malik Taimur Khan,
  • Wajid Rehman,
  • Rida Zameer,
  • Masab Saeed,
  • Muhammed Shakeel,
  • Thoraya A. Farghaly,
  • Abdullah Y. A. Alzahrani,
  • Zeeshan Arshid

摘要

This study examines the synthesis and characterization of antimony oxide (Sb2O3) nanoparticle and its combination with chitosan (Cs) to make Sb2O3-Cs nanocomposites. The green chemistry method of the Sb2O3 nanoparticles synthesis was supported by the Actinidia deliciosa (kiwi) extract that serves as reducing agent and stabilizing agent. The nanoparticles obtained were characterized by Scanning Electron Microscopy (SEM), Energy Dispersive X-ray (EDX) analysis, X-ray Diffraction (XRD), and Fourier Transform Infrared Spectroscopy (FTIR) to study their morphology, elemental composition, crystallinity and functional groups respectively. The SEM images indicated a more compact, heterogeneous structure when the Sb2O3 nanoparticles were incorporated into the chitosan matrix to form Sb2O3-Cs nanocomposites, with the nanoparticles uniformly distributed in the chitosan matrix. XRD results established the formation of a pure senarmontite cubic phase of Sb2O3 in pure nanoparticles and nanocomposites. The findings indicated that the dispersion of Sb2O3 nanoparticles was highly enhanced by the presence of chitosan and this minimized aggregation and increased the stability of the material. The synthesized materials were tested against Staphylococcus aureus and Escherichia coli by zone of inhibition (ZOI) method of antibacterial activity as well as tested for photocatalytic degradation of rhodamine-B (rhB) under visible light. This study explains that Sb2O3 nanoparticles, and Sb2O3-Cs nanocomposites, possess significant potential in biomedical and pollution remediation applications.