The Effect Of Variation Of Cuo On The Zno/Cuo Nanocomposites Modified With Orange Peel Extract For The Antibacterial Activities

Abstract

The progress of green chemistry in the synthesis of nanoparticles using plants has attracting a great attention nowadays due to its low cost, simple, non-toxic and environmental-friendly nature. The present study focuses on the effect of variation of CuO on the ZnO/CuO nanocomposites modified with orange peel extract on the antibacterial activities and aims to both minimize the use of toxic chemicals in nanocomposites fabrication and enhance the antibacterial activity of and 10:40 ZnO/CuO nanocomposites with orange peel extract. In this work, an aqueous extract of orange peel was used as the biological reduction agent for the synthesis of and 10:40 ZnO/CuO NCs from zinc acetate dihydrate. In this study ZnO/CuO nanocomposites (NCs) was produced using the Sol-gel process, followed by oven drying at 80 C. UV-Vis spectroscopy was used to monitor the synthesis, and peaks above 320 nm confirmed the production of the nanocomposites, the size and morphology of the ZnO/CuO with orange peel extract NCs significantly shown by SEM, the presence of distinct functional groups on the surface of the nanocomposites of each ratio of ZnO/cuO was shown by Fourier transform infrared spectroscopy, X-ray crystallographic analyses revealed a hexagonal structure with average crystallite size of 23.38nm. The ZnO/CuO NCs exhibited strong antibacterial activity toward Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) with orange peel extract using 10:40 ZnO/CuO after 18 hr of incubation