Synthesis and Characterization of ZnO Nanoparticles under Different Spray Dryer Processing Parameters and Solution Concentrations

In this study, it has been aimed to investigate the effect of different concentrations and spray dryer process parameters on morphology and particle size of ZnO nanoparticles. In the scope of the study ZnO nanoparticles were synthesized from zinc acetate solutions and the structural and morphological characterizations were carried out. Successive spray drying and thermal decomposition processes were performed in order to synthesize of ZnO nanoparticles. The X-ray diffraction analysis revealed single-phase ZnO hexagonal structure. It has been determined that the densities increased while the specific surface area values decreased with increasing of concentration. By the changing of spray dryer process parameters, particle size and density have altered. According to SEM micrographs, it has been observed thatspherical morphologies ofspray dried powders exhibit rod/rodlike morphology with the thermal decomposition process. In the evaluation of results, it has been ascertained that the structural and morphological properties of ZnO nanoparticles varied by concentration and by changing the spray dryer process parameters