纳米TiO2光催化剂的改性及应用研究进展  

Research Progress on Modification and Application of Nano-TiO_2 Photocatalyst

作　　者：曹沛森[1] 许璞[2] 王玉宝[2] 乔青安[2] 毛伟鹏[2] 唐荣[2] 高善民[2] 

机构地区：[1]潍坊职业学院化学工程系,山东潍坊261031 [2]鲁东大学化学与材料科学学院,山东烟台264025

出　　处：《微纳电子技术》2008年第3期145-152,共8页Micronanoelectronic Technology

基　　金：国家自然科学基金(20603030);鲁东大学中青年自然科学基金(21000301)

摘　　要：对纳米TiO2的光催化反应机理及制备方法做了简要阐述,重点介绍了目前在纳米TiO2掺杂改性方面,尤其是非金属掺杂和共掺杂改性方面的研究进展。氮掺杂的TiO2是新发现的具有可见光催化活性的复合光催化剂,非金属掺杂可以使复合物的禁带宽度小于纯TiO2的禁带宽度,从而使TiO2的吸收边向可见光方向移动。对TiO2的N、C、S、P、卤素掺杂以及共掺杂的国内外研究现状进行了评述,分析了提高TiO2可见光催化活性的原因。对纳米TiO2光催化应用领域进行简单介绍,最后提出了在TiO2光催化剂研究中期待解决的问题及今后的发展方向。The photocatalytic mechanism and preparation methods of nano-TiO2 were brief described. Put great emphasis on summarizing the advance made in improving the photocatalytic property of nano- TiO2 by adulterating-modifying, especially the nonmetal-doping and co-doping. TiO2 doped with N is the new generation of photocatalyst with visible light photocatalytic activity, the width of forbidden band of composite photocatalysts doped with nonmetal is less than that of TiO2, which makes the absorption of TiO2 move toward visible light. The research process in visible light photocatalysis of TiO2 doped with N, C, S, P, X （X=F, C1, Br, I） and co-doped were reviewed, and the factors improving the visible light photocatalytic activity were analyzed. The applications prospect of nano-TiO2 photocatalytic material were analyzed. The problems in the study of nano-TiO2 photocatalysts and the future developing trends were presented.

关 键 词：二氧化钛 纳米 光催化剂 掺杂 改性 

分 类 号：TB34[一般工业技术—材料科学与工程] TB383