Synthesis and Antibacterial Activity of ZnO Nanoparticles Using the Precipitate and Irradiation Methods

Abstract

In this study, ZnO NPS were synthesized in two methods: the precipitate and irradiation methods. X-Ray powder Diffraction, Transmission and Scanning Electron Microscopy were used to study the crystal structure and surface morphology of the synthesized NPS, which showed that the average particle size of ZnO NPS synthesized by irradiation method was better than which synthesized by precipitate method. The antibacterial activity against staphylococcus epidermidis and E.coli bacteria were studied and showed that ZnO NPs prepared by  Irradiation method have higher antibacterial activity against S.epidermidis  and E.coli than ZnO NPs prepared by  precipitate method because of  ZnO NPs prepared by  Irradiation method smaller than ZnO NPs prepared by  precipitate method. In current study, we concluded that irradiation method is better than precipitate method in the preparation of ZnO NPS and in the inhibition of the work of types of bacteria such as (staphylococcus epidermidis and E.coli).