Volume VI Issue III July-September 2026

Name of Author : D. E. Gino, J. Samuel, S. Ajinsundar

Title of the paper : Synthesis and Investigation of the Structural, Optical, and Antibacterial Properties of W-Doped ZNO Nanoparticles

Abstract: Doped metal oxide nanoparticles have garnered considerable attention due to their tunable structural and optical properties, which make them promising candidates for diverse technological and biomedical applications. In this study, pure ZnO and W-doped ZnO nanoparticles were synthesized using a facile, cost-effective wet-chemical route. XRD analysis confirmed the formation of the hexagonal wurtzite ZnO phase. W incorporation led to a reduction in the optical band gap, indicating modification of the electronic structure of ZnO nanoparticles. Notably, W-doped ZnO exhibited enhanced antibacterial activity against E. coli, with a zone of inhibition of 14 mm. The improved antibacterial performance can be attributed to the influence of W incorporation on the structural, optical, and surface characteristics of ZnO. These findings demonstrate that W doping effectively tunes the physicochemical properties of ZnO nanoparticles, enhancing their functional performance and highlighting their potential for antibacterial and biomedical applications.

Keywords : Wet chemical synthesis; Doping; Crystallite size; Band gap, antibacterial

DOI :

Page No. : 68-74