钼掺杂二氧化钛复合膜的光催化及光电性质  

Photocatalysis and photoelectricity of mo-doped TiO_2 thin films

作　　者：杜玉扣[1] 甘玉琴[1] 华南平[1] 杨平[1] 

机构地区：[1]苏州大学化学化工学院,江苏苏州215006

出　　处：《化学研究与应用》2004年第6期802-804,共3页Chemical Research and Application

基　　金：国家自然科学基金资助项目(90207026)

摘　　要：PVP protected Mo-doped TiO2 colloids were synthesized using the sol-gel method.The TiO2thin films deposited on different substrates were prepared by the dipping-lifting method.The films were characterized by UV-Vis and electrochemical measurement,and the photocatalytic activity was evaluated by photodegradation of methylene blue under UV radiation.The results indicate that the absorption edge of TiO2 thin film doped by Mo6+is extended and the photocurrent of that film is enhanced.The photocatalytic activity of 0.75%Mo-doped TiO2films calcined at 300℃ reached the maximum value.PVP protected Mo-doped TiO_2 colloids were synthesized using the sol-gel method.The TiO_2thin films deposited on different substrates were prepared by the dipping-lifting method.The films were characterized by UV-Vis and electrochemical measurement,and the photocatalytic activity was evaluated by photodegradation of methylene blue under UV radiation.The results indicate that the absorption edge of TiO_2 thin film doped by Mo^(6+)is extended and the photocurrent of that film is enhanced.The photocatalytic activity of 0.75%Mo-doped TiO_2films calcined at 300℃ reached the maximum value.

关 键 词：二氧化钛膜 光电流 亚甲基蓝 光降解 

分 类 号：O644.1[理学—物理化学]