Synthesis of ZnO Nanoparticles by Precipitation Method

In this work we develop a simple technique to synthesize ZnO nanoparticles using zinc nitrate and KOH in aqueous solution. The precipitated compound was calcined and characterized by UV-Vis spectroscopy, transmission electron microscopy (TEM), and dynamic light scattering (DLS). The ZnO nanoparticles displayed characteristic Surface Plasmon Resonance peak at around 372 nm. Particle size distribution by dynamic light scattering technique (DLS) showed that the particles are in the range of 30 +/- 15 nm.