可见光响应的非金属离子掺杂二氧化钛的研究进展  

Recent development in nonmetal-doped TiO_2 under visible light irradiation

作　　者：陈代梅[1] 陈建[1] 田倩倩[1] 吴正明[1] 栾兴龙[1] 李英强[1] 

机构地区：[1]中国地质大学材料科学与工程学院,北京100083

出　　处：《工业催化》2010年第9期7-14,共8页Industrial Catalysis

基　　金：矿物岩石材料开发应用国家专业实验室开放研究基金(09A003);大学生创新实验计划项目;中国地质大学(北京)教学实验室开放基金

摘　　要：TiO_2的宽禁带宽度[Eg=(3.0～3.2)eV]限制了其光催化特性的实际应用,非金属元素掺杂为提高TiO_2在可见光光催化活性提供了契机。介绍了非金属元素(氮、碳、硫、氟和硼)掺杂TiO_2的制备方法和可见光催化活性的研究进展,分析非金属元素对TiO_2可见光催化活性的诱导机理。制备工艺影响掺杂元素的化学态和含量,决定掺杂元素在TiO_2晶体微观状态。掺杂元素在TiO_2晶体微观状态与TiO_2可见光催化活性具有相关性,对未来的研究方向进行了展望。The application of TiO2 has been limited with its wide band gap [ （3.0 - 3.2） eV ]. The nonmetal-doped TiO2 developed in recent years provides a promising opportunity for application of TiO2 under visible light. The up-to-date development in preparation and vis-photocatalytic properties of the nonmetaldoped TiO2 （N,C,S,F and B） was reviewed, and the vis-photocatalytic mechanisms due to doping with nonmetal were discussed. The preparation methods remarkably influenced the chemical states and contents of nonmetals in doped TiO2 , which decided the microstates of the doping elements in TiO2 crystal. There was a correlation of the microstates of the doping elements in TiO2 crystal with the vis-photocatalytic activity of doped TiO2. The research direction of nonmetal-doped TiO2 in the future were also outlined.

关 键 词：催化化学 纳米二氧化钛 非金属 掺杂 光催化 

分 类 号：TQ034[化学工程] O644[理学—物理化学]