Abstract

• In this work, zinc oxide nanoparticles were synthesized by using sol-gel method at calcination temperatures of 400˚C and 500˚C. Sol-gel method is the simplest method and has the ability to control the particle size and morphology through systematic monitoring of reaction parameters. Zinc oxide nanoparticles were synthesized via sol-gel method using zinc acetate dihydrate [Zn(CH3COO)2.2H2O] as a precursor and methanol as a reagent. Distilled water was used as solvent medium and ammonia was used to adjust the pH value. And then the obtained samples were characterized by X-ray Diffraction (XRD) to confirm the formation of ZnO phase, which showed that it had this type of hexagonal wurtzite structure. In the comparison of the crystalized sizes of the samples, the sample calcinated at 500˚C have smaller crystalized size than the sample calcinated temperatures at 400˚C. The Scherrer’s equation was used to calculate the crystalized size of the ZnO powder. And then, scanning electron microscopy (SEM) was used to observe the surface morphology of obtained ZnO nanoparticles.