纳米氧化锌的制备工艺研究  

Study on the preparation technology of nano-zinc oxide

作　　者：李艳[1] 于娜娜[1] 王笃政[1] 

机构地区：[1]中北大学化工与环境学院,太原030051

出　　处：《化工新型材料》2012年第7期34-36,41,共4页New Chemical Materials

基　　金：中北大学科学基金(2011-044)

摘　　要：以均匀沉淀法作为纳米氧化锌的制备方法,通过单因素实验和正交实验,系统地分析了溶液水解反应温度、水解反应时间、原料摩尔配比、煅烧温度等对氧化锌粉体产率和粒径的影响。结果表明,最佳工艺是:以直接混合的方式混合原料液,聚乙二醇-400作表面活性剂,反应温度90℃,原料摩尔配比c(尿素)/c(硝酸锌)=3:1,反应时间5.5h,前驱体碱式碳酸锌的最佳煅烧温度为500℃。通过所制得纳米氧化锌的XRD、SEM的粒径分析,证明了所制得的纳米氧化锌晶形为六方晶相,纯度大于99.9%、平均粒径约为68nm,产率为89.6%。The homogeneous precipitation method was used to preparate ZnO. The single factor experiment and or thogonal experiment were applied for study on the preparation process. It was Systematic analysed that influence of solution hydrolysis temperature, hydrolysis reaction time, molar ratio, calcination temperature on the yield and size of nanomcteF sized zinc oxide. The results showed that： by a way of directly mix of raw materials,mixed liquid and to the surface of PEG- 400 as dispersant, the optimum preparation conditions included that the molar ratio of c（urea）/c（zinc nitrate） was 3：1, reaction temperature was 90℃, the reaction time was 5. 5h, best calcination temperature of precursor body alkali type zinc carbonate was 500℃. The zinc oxide obtained hy the analysis of XRD, SEM to prove that the prepared samples were hexa- gonal ZnO crystal phase, its purity above 99.9% , particle size of about 68nm, the yield was 89. 6 %.

关 键 词：纳米氧化锌 工艺 均匀沉淀法 

分 类 号：O614.241[理学—无机化学] TB383.1[理学—化学]