摘要
TiO2表面含有丰富的羟基基团,研究表面羟基的分布和性质对理解TiO2的吸附和光催化作用本质有非常重要的意义。本文简要总结了国内外近年来关于TiO2表面羟基的研究进展,如不同晶相结构TiO2的表面羟基状态及不同晶面上羟基的种类、表面吸附水对羟基分布的影响、表面羟基的光电化学性质及其在光催化反应中的作用等。最后对TiO2表面羟基研究中存在的问题进行了分析。
Having surface hydroxyl groups are one of the most important characteristics of TiO2 surface, and this has great effect on the photocatalysis and adsorption properties of TiO2. Study of surface hydroxyl groups of TiO2 is of importance in the investigation of surface properties and catalysis properties of TiO2. This review briefly summarized the investigations of surface hydroxyl groups in recent years, including the states and kinds of the hydroxyl groups of the different crystal phases of TiO2, the effect of absorbed H2O on the hydroxyl groups, and the photo electrochemical and photocatalytic behaviors of the hydroxyl groups. Finally, some problems in the study of surface hydroxyl groups is analyzed.
出处
《化学进展》
SCIE
CAS
CSCD
北大核心
2007年第5期665-670,共6页
Progress in Chemistry
基金
国家自然科学基金项目(No.20537010
20573020
20373011
20673020)
科技部重大基础研究前期研究专项(2004CCA07100)
福建省自然科学基金(Z0513007)
福建省教委三项基金(K04015)资助
关键词
二氧化钛
表面羟基
光催化
TiO2
surface hydroxyl groups
photocatalysis
