介孔结构多酸掺杂-锐钛矿纳米晶Na_4W_(10)O_(32)/TiO_2的制备及其可见光光催化性能研究  

Preparation and Visible-light Photocatalytic Properties of Polyoxometalate-doped Anatase Nanocrystal Na_4W_(10)O_(32)/TiO_2 with Mesoporous Structure

作　　者：徐运亭[1] 李莉[2] 于小丹[2] 郭伊荇[2] 

机构地区：[1]中国科学院兰州地质研究所,兰州730000 [2]东北师范大学化学学院,长春130024

出　　处：《高等学校化学学报》2004年第8期1549-1551,M009,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金 (批准号 :2 0 0 710 0 7);吉林省科技厅社会发展重点项目基金(批准号 :2 0 0 10 40 3 )资助

摘　　要：A simple and rapid process has been developed for the preparation of mesoporous anatase TiO 2 crystalline particles coupled by homogeneously dispersed Na 4W 10 O 32 at a lower temperature ( 200 ℃ ) by combining sol-gel and programmed temperature hydrothermal methods. The composite,Na 4W 10 O 32 /TiO 2,has a uniform mesopore distribution with the average pore diameter of 3.8 nm,and its BET surface area is 178.4 m 2/g. The average size of the composite is below 10 nm. This new photocatalyst exhibited a visible-light photocatalytic activity to decompose para -thion-methyl.A simple and rapid process has been developed for the preparation of mesoporous anatase TiO 2 crystalline particles coupled by homogeneously dispersed Na 4W 10 O 32 at a lower temperature ( 200 ℃ ) by combining sol-gel and programmed temperature hydrothermal methods. The composite,Na 4W 10 O 32 /TiO 2,has a uniform mesopore distribution with the average pore diameter of 3.8 nm,and its BET surface area is 178.4 m 2/g. The average size of the composite is below 10 nm. This new photocatalyst exhibited a visible-light photocatalytic activity to decompose para -thion-methyl.

关 键 词：孔材料 可见光光催化 杂多酸 锐钛矿 有机磷杀虫剂 

分 类 号：O647[理学—物理化学]