Research Journal of Chemistry

and Environment


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Synthesis Characterisation of Nano-ZnO Particles by Chemical Reduction and their Application of Anti-Microbial Activity against some pathogens

Gundala Madan Kumar, Ginne Kalpana, M. Ravinder and J.V. Shanmukha Kumar

Res. J. Chem. Environ.; Vol. 29(12); 75-80; doi: https://doi.org/10.25303/2912rjce075080; (2025)

Abstract
This study employed the chemical reduction (CR) method to synthesize nano-ZnO particles of varying sizes. Zn(NO₃)₂ functions as a metal precursor whereas NaBH₄ operates as a reducing agent, creating the fundamental elements necessary for the synthesis of nano-ZnO particles. The detailed chemical composition of nano-ZnO powders was examined through Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM).

The analysis of the nano-ZnO particle encompassed an examination of its composition, shape, size and crystallinity. The nano-Zn oxide particles were measured at 100 nm and displayed a wurtzite hexagonal structure. The method employed for testing antibacterial activity against both Gram-positive and Gram-negative bacteria facilitated the assessment of the antimicrobial properties of the synthesized nano-ZnO particles.