沉淀法制备氧化锌粉体  

Preparation of zinc oxide powder by precipitation method

作　　者：郑兴芳[1] 郭成花[1] 郑建国[1] 

机构地区：[1]临沂大学化学化工学院,山东临沂276005

出　　处：《无机盐工业》2012年第3期19-21,共3页Inorganic Chemicals Industry

摘　　要：以碳酸钠和硫酸锌为原料,采用沉淀法制备前驱体碱式碳酸锌,前驱体经过热分解得到氧化锌粉体。采用热重分析(TG-DTG-DTA)、X射线衍射(XRD)、红外光谱(IR)和扫描电镜(SEM)等方法对前驱体和产品氧化锌进行表征。结果表明:制备的前驱体为碱式碳酸锌Zn4(OH)6CO3;以水、乙二醇为溶剂及聚乙二醇(PEG)为分散剂,均可制备出较为纯净的氧化锌;乙二醇为溶剂和PEG为分散剂,改善了氧化锌的形貌和分散性,避免了氧化锌团聚。The precursor,basic zinc carbonate was obtained by precipitation method with ZnSO4 and Na2CO3 as raw materials.Then ZnO powders were prepared after pyrolysis of precursor.Precursor and ZnO powders were characterized and analyzed by TG-DTG-DTA,XRD,IR,and SEM respectively.Results showed that the precursor was Zn4（OH）6CO3;pure ZnO can be both prepared by water and ethylene glycol as solvents and by PEG as dispersant;and the morphology and dispersibility of ZnO could be improved and agglomeration could be avoided with ethylene glycol as solvent and PEG as dispersant.

关 键 词：氧化锌 制备 沉淀法 

分 类 号：TQ132.4[化学工程—无机化工]