Preparation, Characterization and Application of Zinc Oxide and Nickel Doped Zinc Oxide Nanoparticles at High Temperature

Abstract

Pure Zinc oxide and nickel doped zinc oxide nanoparticles were prepared by precipitation method at high temperature (700C°). The Shape and size of these prepared nanostructures were then characterized by UV absorption, SEM, and FTIR technique. Band gap of ZnO and Ni/ ZnO were calculated from UV absorption measurement and it was found to be 3.9eV and 3.85eV respectively. Scanning electron microscopy measurement showed that the average particle size of ZnO and Ni/ ZnO were 62.5 and 83.1nm respectively FTIR confirmed the formation of ZnO as evident from stretching frequency band for Zn-O at 446.3cm-1, which was shifted to 438.5 cm-1 for doped Ni-ZnO. FTIR spectrum, provide supportive evidence for successful formation of Zinc oxide and nickel doped zinc oxide. The rate constant for catalytic photo degradation of methyl orange was calculate for two nano catalyst used and was found to be 0.0185min-1 and 0.0225min-1 for zinc oxide and nickel doped zinc oxide respectively. Percentage degradation after 110 minute was 60℅ and 71℅ for ZnO and Ni/ ZnO respectively.