表面活性剂对氧化锌微晶形貌的影响  

Effect of different surfactants on the morphologies of ZnO microcrystals

作　　者：李平[1] 鲁彬[1] 魏雨[1] 

机构地区：[1]河北师范大学化学与材料科学学院,河北石家庄050016

出　　处：《无机盐工业》2007年第7期18-19,32,共3页Inorganic Chemicals Industry

基　　金：河北省自然科学基金资助项目(No.501115)

摘　　要：采用简单的低温液相法,通过添加表面活性剂成功制备出不同形貌的氧化锌微晶。用X射线衍射(XRD)和扫描电子显微镜(SEM)分别对产物的结构和形貌进行了表征。结果表明,在反应体系中添加0.01 mol/L的十二烷基硫酸钠(SDS),使生成产物的形貌由原来的棒状变为孪生螺帽状氧化锌;相同条件下用0.1 mol/L三乙醇胺(TEA)替代SDS,则得到一种麦粒状氧化锌晶体。并初步探讨了表面活性剂SDS和TEA对氧化锌晶体生长的作用机理。ZnO microcrystals with a diversity of morphologies were successfully prepared with the addition of different surfactants by a simple low - temperature liquid - phase method. The structures and morphologies of these microcrystals were characterized by X -ray diffraction （XRD） and scanning electron microscopy （SEM）. Results showed that gemel nut -like ZnO microcrystals can be obtained in the presence of 0. 01 mol/L sodium dodecyl sulfate （SDS） instead of rod -like samples obtained in the absence of any surfactant, and wheat - like ZnO microcrystals can be obtained in the presence of 0. 1 mol/L triethanolamine （ TEA ）. The modifying mechanism of SDS and TEA on the growth habit of ZnO crystals were preliminarily studied in this paper.

关 键 词：氧化锌 液相法 形貌 表面活性剂 

分 类 号：TQ132.41[化学工程—无机化工]