Synthesis and Characterization of ZnO Nanoparticles by Thermal Decomposition Method

The paper presents a method for obtaining nanoparticles of ZnO by thermal decomposition of the Zn-containing compounds. The experiment was based on the thermal decomposition of basic Zinc Acetate dihydrate to zinc oxide. Basic Zinc Acetate dihydrate was analysed by derivatography and then annealed at a selected temperature (500 degrees C to 700 degrees C) for about 3 h. The precursor was decomposed by heating in air resulting in the formation of Hexagonal structure of zinc oxide. Precursor precipitates were transformed into zinc oxide by Thermal decomposition. The precursor and decomposed products were analyzed using XRD analysis and FTIR analysis techniques. The average size of the particles of ZnO obtained using the thermal decomposition technique was approximately 28.8 nm, 34 nm, 39.5 nm at 500 degrees C, 600 degrees C, and 700 degrees C, respectively. FTIR data shows a strong peak at 430 cm(-1), assignable to the Zn-O stretching vibrations mode.