Preparation of Nanometer-ZnO and Sheet-ZnO By Uniform-Precipitation Method

Nanometer ZnO was synthesized by uniform precipitation-method from ZnCl 2 and carbamide, and TEM, SEM and XRD were used to characterize the product. Result indicated that powdered ZnO with good crystal capability could be obtained after treatment at 200℃. Less granularity, bigger reactant concentration and proportion. The crystal grew in sheet, with 20 nanometers at average. Effect of concentration on the granularity, and the optimal growing condition of sheet ZnO crystals were discussed.