Abstract
One of the possibilities for the creation of metal nanoparticles is the reduction of transition metal salts using a greener technique. Walnut shell (WS) is an agricultural waste that comprises of cellulose and lignin and is natural, cheap and worthless. Walnut shell is a biodegradable polymer with –OH groups which are biocompatible and renewable. In the present study, we synthesized copper oxide nanoparticles from copper (II) sulfate pentahydrate in an aqueous medium catalyzed by walnut shell under UV Irradiation. WS here acts as the reducing and capping agent as well. Synthesized nanoparticles were studied using UV-Vis, XRD, SEM, EDX and FTIR analysis. Staphylococcus aureus, Bacillus subtilis, Escherichia coli and Pseudomonas aeruginosa were used to test antibacterial activity.
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