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<p>Environmental pollution and antimicrobial resistance are critical global challenges requiring innovative solutions. Current study reports the <i>Phyllanthus Niruri</i> (L) mediated synthesis of Cerium orthovanadate (CeVO<sub>4</sub>) nanoparticles (NPs) using a solution combustion method. The synthesized NPs were characterized by X-ray diffraction (XRD), UV-diffuse reflectance spectroscopy (UV-DRS), Fourier-transform infrared (FT-IR) spectroscopy, and morphological analyses using scanning electron microscopy (SEM), transmission electron microscopy (TEM) and elemental composition by Energy-dispersive X-ray analysis (EDAX), which confirmed elemental composition, validating successful synthesis. The Brunauer–Emmett–Teller (BET) and Barrett–Joyner–Halenda (BJH) analyses revealed a surface area of 16.52&#xa0;m<sup>2</sup>/g, and porosity. CeVO<sub>4</sub> NPs exhibit an average crystallite size of 22&#xa0;nm and a band gap energy of 3.13&#xa0;eV, demonstrated high photocatalytic efficiency (93%) in degrading methylene blue (MB) dye at 30&#xa0;mg of catalytic load. Furthermore, the antibacterial activity of the CeVO<sub>4</sub> NPs was evaluated against <i>Staphylococcus aureus (S. aureus, ATCC-25923)</i> and <i>Escherichia coli (E. coli ATCC-25922)</i> using minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) assays in a 96-well plate method. The MIC and MBC values for <i>S. aureus</i> and <i>E. coli</i> were 3.90&#xa0;µg/mL and 2.05&#xa0;µg/mL and &gt; 1024&#xa0;µg/mL, respectively, when compared to the common antibiotic Ciprofloxacin. This study highlights CeVO<sub>4</sub> NPs as a promising material for applications in forensic science and nanobiotechnology. Overall, this eco-friendly, cost-effective approach opens avenues for advancing photocatalytic, photoluminescence, antibacterial, and latent fingerprint applications.</p> Graphical abstract <p></p>

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Facile green synthesis of Cerium orthovanadate nanoparticles: applications towards enhanced photocatalytic activities, development of latent fingerprints and evaluation of antibacterial activities

  • 期刊论文

  • 发表日期：

    2025年2月24日

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  • T. D. Puttaraju,
  • T. L. Soundarya,
  • Mohammad Khalid Al-Sadoon,
  • G. Nagaraju,
  • V. Dwarkanath,
  • M. Manjunatha

摘要

Environmental pollution and antimicrobial resistance are critical global challenges requiring innovative solutions. Current study reports the Phyllanthus Niruri (L) mediated synthesis of Cerium orthovanadate (CeVO4) nanoparticles (NPs) using a solution combustion method. The synthesized NPs were characterized by X-ray diffraction (XRD), UV-diffuse reflectance spectroscopy (UV-DRS), Fourier-transform infrared (FT-IR) spectroscopy, and morphological analyses using scanning electron microscopy (SEM), transmission electron microscopy (TEM) and elemental composition by Energy-dispersive X-ray analysis (EDAX), which confirmed elemental composition, validating successful synthesis. The Brunauer–Emmett–Teller (BET) and Barrett–Joyner–Halenda (BJH) analyses revealed a surface area of 16.52 m2/g, and porosity. CeVO4 NPs exhibit an average crystallite size of 22 nm and a band gap energy of 3.13 eV, demonstrated high photocatalytic efficiency (93%) in degrading methylene blue (MB) dye at 30 mg of catalytic load. Furthermore, the antibacterial activity of the CeVO4 NPs was evaluated against Staphylococcus aureus (S. aureus, ATCC-25923) and Escherichia coli (E. coli ATCC-25922) using minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) assays in a 96-well plate method. The MIC and MBC values for S. aureus and E. coli were 3.90 µg/mL and 2.05 µg/mL and > 1024 µg/mL, respectively, when compared to the common antibiotic Ciprofloxacin. This study highlights CeVO4 NPs as a promising material for applications in forensic science and nanobiotechnology. Overall, this eco-friendly, cost-effective approach opens avenues for advancing photocatalytic, photoluminescence, antibacterial, and latent fingerprint applications.

Graphical abstract