SYNTHESIS AND CHARACTERIZATION OF PURE ZINC OXIDE NANOPARTICLES AND NICKEL DOPED ZINC OXIDE NANOPARTICLES

Abstract

In this paper, Zinc oxide nanoparticles are synthesized by simple wet chemical precipitation method.Zinc nitrate and sodium hydroxide are used as the starting materials.Zinc oxide nanoparticles are formed at a very low temperature of the order of 80 0 C. Nickel doped zinc oxide nanoparticles are synthesized in two steps.In first step precipitate is obtained by reduction of mixture of zinc nitrate, ferric nitrate and starch by sodium hydroxide solution while in second step the given precipitate is thermally decomposed at high temperature of the order of 400 0 C. The crystallinity of the synthesized nanoparticles is then confirmed by X ray diffraction spectroscopy (XRD).The elemental composition of the powder is detected by Energy Dispersive X ray spectroscopy (EDAX).The morphology of the powder is investigated by Scanning Electron Microscopy (SEM).Magnetic characterization of nickel doped zinc oxide nanoparticles is done by Squid Magnetometer.Low temperature magnetization behavior revealed ferromagnetic behavior of sample.