Investigation of the optical and antibacterial properties of biosynthesized ZnO nanoparticles using Thuja tincture

Abstract The present study deals with the green synthesis of ZnO nanoparticles using Thuja tincture as a solvent and two different Zn precursors. The crystallinity of the as-synthesized ZnO nanoparticles was investigated by XRD. The biomolecules bonded to the surfaces of the nanoparticles were assessed by Fourier transform infrared spectroscopy. The band gap and defects in these nanoparticles were investigated by UV-Vis and photoluminescence spectroscopies, respectively. The antibacterial properties of these nanoparticles were also investigated against Escherichia coli .