Green Synthesis and Antibacterial Activities of 11th Group Transition Elements of Copper and Silver Nanoparticles by Waste Peel Extracts of Citrullus Lanatus Fruits

Abstract

The present study demonstrates the bioreductive green synthesis of nanosized 11th transition metals of copper(Cu) and silver(Ag) nanoparticles, using waste peel extracts of watermelon (Citrullus lanatus). Transition metals are highly reactive and higher positive charge metal cations, these ions are easily accepted to the electrons from phyto-constituents.  The peel extracts of Citrullus lanatus seem to be environmentally friendly, so this protocol could be used for rapid production of nanoparticles of CuNPs and AgNPs. The formation of the plant constituent coated Cu-O, and Ag-O nanoparticles were first monitored using UV–Vis absorption spectroscopy, FTIR Spectroscopy. The average particle sizes are measured by XRD SEM and also screened antibacterial activity