Objective: Herein, we report zinc oxide (ZnO) nanoparticles (NPs) synthesized by a
simple precipitation method using zinc acetate dihydrate (Zn(CH3CO2)2. 2H2O) and sodium hydroxide
(NaOH) precursors in aqueous media.
Methods: Synthesized material was annealed at different temperatures to check phase formation
and its purity.
Results: At room temperature, the sample shows the formation of zinc hydroxide and at high temperature
(100, 200, and 300°C) shows the formation of ZnO. Synthesized materials were analyzed
by different techniques. X-ray diffraction analysis shows the formation of a hexagonal crystal
structure. Morphological features were analyzed by the SEM technique which shows agglomerated
Conclusion: The optical properties of ZnO were studied by using UV analysis and showed intrinsic
excitonic transition property of the ZnO semiconductor. Further, with an increase in annealing
temperature crystalline size, agglomeration of nanoparticles found to be increased whereas the