Abstract
Herewith, we describe the synthesis of zinc oxide (ZnO) nanoparticles employing the precipitation approach and annealing it at various temperatures. The variations in the size and morphology of the nanostructures due to the temperature rise were probed by X-ray diffraction (XRD), Scanning Electron Microscopy (SEM),Energy Dispersive X-rays (EDX),BET Surface Analysis, Fourier Transformation Infrared (FTIR), and Thermogravimetric analysis (TG-DTA). The X-ray diffraction (XRD)graphs revealed a pure wurtzite structured ZnO nanoparticles. The Williamson-Hall X-ray peak profile analysis was employed to verify the crystallite sizes and lattice strain (E) contributions to the broadening of the obtained nanoparticles XRD peaks. The data illustrated that the crystallite size calculated by Scherer's equation, Williamson-Hall models, and the particle size from SEM are positively correlated. The SEM images of the ZnO nanoparticles demonstrated semispherical shape that transformed to spherical aggregates with annealing temperature rise. BET Surface area analysis, confirmed the formation of a mesoporous ZnO with 25.3641 to 8.7781 m(2)/g surface area and 16.03 to 25.03 nm mean diameter as the temperature range was increased from275 degrees C to 600 degrees C.Finally, the FTIR findings verified the ZnO formation as indicated by the existence of Zn-O stretching vibration at 443.96 cm(-1).