Synthesis CuO-ZnO nanocomposite and its application as an antibacterial agent

Abstract

The synthesis of CuO-ZnO composites and their application as anti-bacterial have been conducted. Nanocomposite CuO-ZnO was synthesized using sol-gel method. The nanocomposite products were characterized by XRD, DR-UV, SAA, FTIR, SEM-EDX. The results of the XRD analysis showed that the CuO-ZnO composite has a nanometer size with the average of 15.99 nanometer. The DR-UV analysis showed that the CuO-ZnO composite has a band-gap of 2.28 eV in the average. The analysis of SAA showed that the CuO-ZnO has a surface area of 23.20 m2/g in average. FTIR investigation revealed that the vibration of ZnO was observed at 432.05 cm-1 whereas CuO at 524.64 cm-1 and 594, 06 cm-1. The SEM-EDX analysis showed that the ZnO has a hexagonal structure whereas the CuO has a monoclinic structure. The CuO-ZnO nanocomposite has the ability as an antibacterial against S. aureus as gram-positive and E. coli as Gram-negative bacteria.