胶晶模板法合成三维有序大孔金属氧化物材料  

Preparation of Three-Dimensionally Ordered Macroporous Metallic Oxide Materials by Colloidal Crystal Templating Method

作　　者：李石[1] 赵东风[1] 郑经堂[2] 赵玉翠[2] 

机构地区：[1]中国石油大学(华东)化学化工学院环境科学与工程系,山东青岛266555 [2]中国石油大学(华东)重质油国家重点实验室,山东东营257061

出　　处：《中国材料进展》2010年第7期49-52,共4页Materials China

基　　金：国家重点基础研究发展计划资助项目(2010CB833101)

摘　　要：以自然沉积组装的聚苯乙烯(PS)微球为胶体模板,分别以浓度为50%的钛酸四丁酯醇溶液和锆酸四丁酯醇溶液为前驱体对模板进行填充,最后通过煅烧除去模板得到了三维有序大孔(3DOM)TiO2、ZrO2材料。从SEM照片可观察到,3DOMTiO2、ZrO2材料可以看成是PS模板的逆复制,孔径大小均匀,与PS模板相比具有一定的收缩。进一步通过TEM照片观察,3DOM材料整体上呈面心立方结构,孔壁完整致密。XRD显示,制备的3DOM的TiO2和ZrO2孔壁分别为锐钛矿型和单斜晶型。Three-dimensionally ordered macroporous TiO2 and ZrO2 materials were successfully synthesized by gravita- tional sedimentation PS microspheres as colloidal crystal template and ethanol solutions of metal alkoxides as precursor. The interstices between template microspheres was filled with precursor solution which concentration was 50% by capillary force, and eventually PS template was removed by two-step calcinations. The SEM and TEM images indicated that the maeroporus structures were arranged orderedly and periodically in a face-centered cubic （fee） structure. The obtained samples can be looked as the inverse duplication of PS template, although there were some shrinkages. The results of XRD showed the cell wall of the macroporous samples consisted of anatase and monoclinic phase, respectively.

关 键 词：金属醇盐 三维有序大孔材料 胶晶模板 二氧化钛 二氧化锆 

分 类 号：TQ317[化学工程—高聚物工业]