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<p>In this study, sol-gel technique has been used to synthesized the pristine Se<sub>2</sub>O<sub>5</sub> (PS), Nb<sub>2</sub>O<sub>5</sub> (PN) and 1, 3 wt% Se<sub>2</sub>O<sub>5</sub>@Nb<sub>2</sub>O<sub>5</sub> (1NS, 3NS) nanocomposite materials respectively. The X-ray diffraction patterns confirmed that PN, 1NS and 3NS nanocomposite materials exhibit an orthorhombic structure where PS nanocomposite materials exhibit a monoclinic structure, having crystallite size in the range of 39.71 to 49.07&#xa0;nm. Optical properties i.e., band gap energy was studied using UV-Vis DRS analysis. The calculated band gap energy is 3.35&#xa0;eV for PN, and it reduced to 3.09&#xa0;eV for 3NS with red shift in the absorption edge. Bending and stretching vibrations of Nb–O, Nb = O and Se = O were assessed by FTIR spectrometer, BJH (Barrett-Joyner-Halenda), plot show pore volume of 0.1427 cm<sup>3</sup> g<sup>− 1</sup> and pore diameter 3.39&#xa0;nm. The enhanced light absorption capacity of 1NS, resulted in 83.00% photocatalytic degradation efficiency methylene blue (MB) within 150&#xa0;min in sunlight. The antibacterial activities 1NS nanocomposites observed larger zone of inhibition of <i>S. aureus</i> as compared to <i>E. coli</i>. The antifungal activities 1NS nanocomposites observed larger zone of inhibition for <i>Aspergillus Niger</i> as compared to <i>Candida Albicans.</i></p> Graphical Abstract <p></p>

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Enhanced Photocatalytic, Antibacterial and Antifungal Activities of Se2O5@Nb2O5 Nanocomposite Material

  • 期刊论文

  • 发表日期：

    2026年2月16日

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  • Akshay Mahapure,
  • Akash Nagare,
  • Amol Dhadage,
  • Madhukar Navgire,
  • Anil Athare,
  • Ramesh Naval

摘要

In this study, sol-gel technique has been used to synthesized the pristine Se2O5 (PS), Nb2O5 (PN) and 1, 3 wt% Se2O5@Nb2O5 (1NS, 3NS) nanocomposite materials respectively. The X-ray diffraction patterns confirmed that PN, 1NS and 3NS nanocomposite materials exhibit an orthorhombic structure where PS nanocomposite materials exhibit a monoclinic structure, having crystallite size in the range of 39.71 to 49.07 nm. Optical properties i.e., band gap energy was studied using UV-Vis DRS analysis. The calculated band gap energy is 3.35 eV for PN, and it reduced to 3.09 eV for 3NS with red shift in the absorption edge. Bending and stretching vibrations of Nb–O, Nb = O and Se = O were assessed by FTIR spectrometer, BJH (Barrett-Joyner-Halenda), plot show pore volume of 0.1427 cm3 g− 1 and pore diameter 3.39 nm. The enhanced light absorption capacity of 1NS, resulted in 83.00% photocatalytic degradation efficiency methylene blue (MB) within 150 min in sunlight. The antibacterial activities 1NS nanocomposites observed larger zone of inhibition of S. aureus as compared to E. coli. The antifungal activities 1NS nanocomposites observed larger zone of inhibition for Aspergillus Niger as compared to Candida Albicans.

Graphical Abstract