The green synthesis of metal oxide nanoparticles is an efficient, simple, and chemical-free method producing nanoparticles. present work reports the Murraya koenigii-mediated ZrO2 (ZrO2 NPs) their applications as a photocatalyst antibacterial agent. Capping stabilization were achieved by using koenigii leaf extract. optical, structural, morphological valance NPs characterized UV-DRS, FTIR, XRD,...