Synthesis, characterization and antibacterial activity of ZnO nanoparticles

Abstract

In this paper, ZnO nanoparticles were prepared by a wet chemical method. The sample was characterized by X-ray diffraction (XRD), UV-Vis spectroscopy, Fourier transform infrared (FTIR) spectroscopy and photoluminescence. The average crystal size of the prepared ZnO nanopowder was determined by XRD. UV absorption spectrum revealed three bands at 448 nm, 536 nm and 818 nm respectively. The quality and purity of ZnO nanomaterial crystalline samples were confirmed by photoluminescence spectra. Disk diffusion method was used to determine the antibacterial activity of various classes of antibiotics in the presence of ZnO nanoparticles.