Green synthesis and characterization of silver-doped ZnO nanoparticles using tobacco leaf extract: A novel hydrothermal approach for antibacterial and antifungal applications DOI Creative Commons
Jebel Haji Mahamud, Abebe Belay, Alemu Alene Kebede

et al.

AIP Advances, Journal Year: 2025, Volume and Issue: 15(4)

Published: April 1, 2025

A green synthesis of pure zinc oxide and silver-doped nanoparticles (ZnO Ag–ZnO NPs) is reported. This eco-friendly method utilizes tobacco leaf aqueous extract as a reducing stabilizing agent, combined with hydrothermal process at 120 °C for 6 h to control nanoparticle formation. study aimed synthesize, characterize, evaluate the antimicrobial activity NPs. Characterization techniques included FTIR, XRD, SEM, UV‒Vis, PL spectroscopy, along BET surface area analysis. FTIR confirmed functional groups, while x-ray diffraction (XRD) validated hexagonal wurtzite ZnO structure. SEM imaging revealed nanosheet morphology. UV‒Vis analysis showed bandgap energy shifting Ag doping: 2.02 eV (pristine ZnO) 2.29 (3% Ag), 2.53 (5% 3.53 (1% Ag). indicated decrease in (132.251 m2/g pristine 85.005 1% 65.318 5% Ag) pore volume higher content. spectroscopy examined electron‒hole recombination. Antimicrobial against Staphylococcus aureus, Escherichia coli, Candida albicans was evaluated via disk diffusion assay, using ciprofloxacin fluconazole controls. Two-way ANOVA significant differences zone inhibition across varying concentrations doping levels (p < 0.005). Enhanced antibacterial S. aureus observed increasing doping, E. coli limited susceptibility. The NPs exhibited antifungal C. albicans. Bandgap, area, are controllable characteristics suggesting applications biomedicine, photovoltaics, photocatalysis.

Language: Английский

Green synthesis and characterization of silver-doped ZnO nanoparticles using tobacco leaf extract: A novel hydrothermal approach for antibacterial and antifungal applications DOI Creative Commons
Jebel Haji Mahamud, Abebe Belay, Alemu Alene Kebede

et al.

AIP Advances, Journal Year: 2025, Volume and Issue: 15(4)

Published: April 1, 2025

A green synthesis of pure zinc oxide and silver-doped nanoparticles (ZnO Ag–ZnO NPs) is reported. This eco-friendly method utilizes tobacco leaf aqueous extract as a reducing stabilizing agent, combined with hydrothermal process at 120 °C for 6 h to control nanoparticle formation. study aimed synthesize, characterize, evaluate the antimicrobial activity NPs. Characterization techniques included FTIR, XRD, SEM, UV‒Vis, PL spectroscopy, along BET surface area analysis. FTIR confirmed functional groups, while x-ray diffraction (XRD) validated hexagonal wurtzite ZnO structure. SEM imaging revealed nanosheet morphology. UV‒Vis analysis showed bandgap energy shifting Ag doping: 2.02 eV (pristine ZnO) 2.29 (3% Ag), 2.53 (5% 3.53 (1% Ag). indicated decrease in (132.251 m2/g pristine 85.005 1% 65.318 5% Ag) pore volume higher content. spectroscopy examined electron‒hole recombination. Antimicrobial against Staphylococcus aureus, Escherichia coli, Candida albicans was evaluated via disk diffusion assay, using ciprofloxacin fluconazole controls. Two-way ANOVA significant differences zone inhibition across varying concentrations doping levels (p < 0.005). Enhanced antibacterial S. aureus observed increasing doping, E. coli limited susceptibility. The NPs exhibited antifungal C. albicans. Bandgap, area, are controllable characteristics suggesting applications biomedicine, photovoltaics, photocatalysis.

Language: Английский

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