有序大孔TiO_2的制备  

Preparation of Ordered Macroporous Titania

作　　者：匡代彬[1] 吴玉[1] 欧晃栋[1] 方岳平[1] 徐安武[1] 刘汉钦[1] 

机构地区：[1]中山大学化学与化学工程学院,广州510275

出　　处：《应用化学》2003年第1期92-94,共3页Chinese Journal of Applied Chemistry

基　　金：广东省"十五重点"资助项目 (2 0 0 10 185 ;A30 40 30 2 )

摘　　要：The polystyrene（PS） microspheres were prepared from free radical polymerization of styrene by a sol-gel method combined with centrifugal sedimentation. And the ordered macroporous titania was prepared from Ti（BuO）4 in ethanol solution using the mentioned PS microspheres as a template, which was removed from titania by calcination at 450 ℃. SEM images revealed the PS template has a three-dimentional ordered structure with particle diameter of ca. 450 nm and the macroporous titania thus obtained has a pore size of ca. 300 nm. XRD showed the macroporous titania has anatase structure.The polystyrene(PS) microspheres were prepared from free radical polymerization of styrene by a sol-gel method combined with centrifugal sedimentation. And the ordered macroporous titania was prepared from Ti(BuO)_4 in ethanol solution using the mentioned PS microspheres as a template, which was removed from titania by calcination at 450 ℃. SEM images revealed the PS template has a three-dimentional ordered structure with particle diameter of ca. 450 nm and the macroporous titania thus obtained has a pore size of ca. 300 nm. XRD showed the macroporous titania has anatase structure.

关 键 词：有序大孔TiO2 制备 聚苯乙烯 模板剂法 溶胶-凝胶法 二氧化钛 大孔材料 

分 类 号：TQ134.11[化学工程—无机化工] TB383[一般工业技术—材料科学与工程]