Zinc Oxide nanoparticles were synthesized by simple and efficient method in aqueous media from zinc nitrate and sodium hydroxide. Zinc oxide is an important chemical substance that is widely used in the production of various industrial products. But, the production of nano particle ZnO remains a challenge. In this study, ZnO nanoparticles were prepared by chemical solution and precipitation methods. The size of the particles was measured by scanning electron microscope and particles size analyzer. SEM analyses revealed that single crystal ZnO nanoparticles were achieved with different crystal size. Experimental results have shown that the prepared zinc oxide nanoparticles by this method are higher in size. Zinc oxide nano particles in small size may be obtained by addition of any reducing agents, which was added to optimize the particle size. The size and density of the particles depends on the temperature, rotation of the magnetic stirrer and reducing agent.

Key words : Zinc oxide, Nano particles,SEM