作　　者： ; ; ; ;

机构地区： 广州城市职业学院

出　　处： 《应用化工》 2005年第9期531-534,547,共5页

摘　　要： 介绍了TiO2基固体超强酸光催化剂的制备、光催化性能等,总结了国内外关于固体超强酸光催化剂的研究,结果表明,SO42-表面修饰使得TiO2光催化剂的结构和光催化性能显著改善,催化剂表面形成具有超强酸性质的L酸和B酸协同中心,比TiO2光催化剂有优异的光催化氧化活性、稳定性及抗湿性能。对TiO2基固体超强酸光催化剂的应用进行了展望。 In this paper,the present situation and progress on the area of TiO2-based solid superacid photocatalysis were reviewed briefly, including the performance of TiO2-based solid superacid photocatalysis, preparation of TiO2-based solid superacid photocatalysts. The results indicated that the structure and photocatalytic properties of TiO2 were greatly improved by sulfation. It was found that both B acid sites and L acid sites exist on the SO2-/ZiO2 catalyst, forming cooperative centers with superacidic characteristics. When compared to unmodified TiO2, the SO4^2-/TiO2 catalyst exhibited higher photocatalytic properties, stability, and moisture resistance. The application of TiO2-based solid superacid photocatalysis is also previewed.

关 键 词： 固体超强酸

领　　域： [理学] [理学] [环境科学与工程]