Study On Preparation Of Nanometer Zinc Oxide And Application In Fine Chemicals

A new process of direct precipitation for preparing nanometer zinc oxide was offered in this thesis .We prepared nanometer Zinc Oxide with the raw materials of zinc acetate dehydrate and ammonium acid carbonate by adding negatine ion surfactant E.The effects of many technical fators on the properties of the products,such as the concentrations and proportions of reactants,temperature and time in this reaction system,etc.,have been discussed with the help of single-element method.Moreover,the optimun technological conditions of preparing nanometer zinc oxide powder have been chosed by orthogonal test method.The structure and physical properties of the products have been characterized by TEM,XRD,and TG/DTA etc.The experimental result under the optimun technological conditions shows that the prepared nanometer zinc oxide powders have narrow size distributions between 20nm and 80nm.The purity is more than 99%,and the prepared nanometer zinc oxide is six squarenesses.Adding toothfully the prepared nanometer zinc oxide to ,we analyzed the experimentalresults.Then we discovered that adding toothfully nanometer zinc oxide to ,the mixture has excellent absorption properties from the ultraviolet area to the visible area.