ZnO AND ALKALINE EARTH METAL (Mg) DOPED ZnO NANOPARTICLES FOR ANTIBACTERIAL ACTIVITY, STRUCTURAL AND THERMAL STUDIES

Abstract

The chemical co-precipitation method was used to prepare zinc oxide and magnesium doped ZnO nanoparticles (MgZnO NPs), and their structural, optical, thermal, and antibacterial properties were investigated. XRD spectra revealed that all synthesized NPs are hexagonal wurtzite structure and the size of ZnO and Mg-ZnO NPs is 51 and 42 nm. The FTIR spectra of ZnO and Mg-ZnO NPs have peaks at 463 and 470 cm-1 respectively. Mg-ZnO NPs have increased the thermal stability region from (177-288°C) to (198-296°C). ZnO NPs have high antibacterial activity against E. coli, whereas Mg-ZnO NPs have antibacterial activity against Pseudomonas aeroginosa.