Synthesis of TiO_2 films on glass slides by the sol-gel method and their photocatalytic activity  

作　　者：ZHANG Cuixuan CHEN Rufen ZHOU Juan CHENG Jianhui XIA Qing 

机构地区：[1]College of Chemistry and Material Science, Hebei Normal University, Shijiazhuang 050016, China

出　　处：《Rare Metals》2009年第4期378-384,共7页稀有金属（英文版）

基　　金：supported by the Foundation of the Department of Education of Hebei Province, China (No. 2005362);the Foundation of Hebei Normal University (L2008K02)

摘　　要：Titanium dioxide （TiO2） films with rod-like and sphere-like TiO2 particles were prepared on glass slides employing the sol-gel method. The shape and size of TiO2 particles were controlled using different concentrations of sodium dodecylbenzensulfonate （SDBS）. By increasing the mole ratio of SDBS, the shape of TiO2 particles transformed from rod-like to sphere-like. Also, the size of TiO2 particles became gradually smaller. Then, the size became bigger when an excess amount of SDBS was added. The films were mainly composed of anatase titania and the relative content of anatase increased with the increasing amount of SDBS. The photocatalytic activity of the TiO2 films that were added with SDBS was higher than that without SDBS. When the concentration of SDBS was 8.0 at%, the sample exhibited the best photocatalytic activity.Titanium dioxide （TiO2） films with rod-like and sphere-like TiO2 particles were prepared on glass slides employing the sol-gel method. The shape and size of TiO2 particles were controlled using different concentrations of sodium dodecylbenzensulfonate （SDBS）. By increasing the mole ratio of SDBS, the shape of TiO2 particles transformed from rod-like to sphere-like. Also, the size of TiO2 particles became gradually smaller. Then, the size became bigger when an excess amount of SDBS was added. The films were mainly composed of anatase titania and the relative content of anatase increased with the increasing amount of SDBS. The photocatalytic activity of the TiO2 films that were added with SDBS was higher than that without SDBS. When the concentration of SDBS was 8.0 at%, the sample exhibited the best photocatalytic activity.

关 键 词：titanium dioxide film SYNTHESIS photocatalytic activity particle shape 

分 类 号：TQ174.758[化学工程—陶瓷工业] O484[化学工程—硅酸盐工业]