作　　者： ; ; ; ;

机构地区： 华南理工大学环境科学与工程学院工业聚集区污染控制与生态修复教育部重点实验室

出　　处： 《硅酸盐通报》 2011年第3期511-514,518,共5页

摘　　要： 采用溶胶-凝胶/旋转涂覆法在玻璃基板表面制备含钛介孔SiO2薄膜。利用XRD、UV-Vis以及接触角测量仪对薄膜的孔结构和超亲水性进行表征。结果表明,当Ti/Si物质的量比为0～0.05时,薄膜均具有良好的介孔结构;而随着Ti/Si物质的量比的增加,薄膜的介孔有序度下降。即使在无光照条件下,含钛介孔SiO2薄膜也表现出高效的超亲水性。涂有油酸的薄膜在紫外光照射后恢复其超亲水性,且薄膜对甲基橙具有良好的光催化降解效果,表明制备的含钛介孔SiO2薄膜具有良好的自洁净性能。 Ti-containing mesoporous SiO2 thin films were prepared on glass slides using a sol-geL/spin- coating method. The structure and superhydrohilicity of the thin films were characterized by XRD, UV-Vis and contact angle measurements. When Ti/Si molar ratio is 0-0.05, thin films possess mesoporous structure. The order degree of the mesoporous thin films decreas with the increase in Ti/Si molar ratio. The mesoporous thin films perform effective superhydrophilicity even in the dark. The superhydrophilicity of the mesoporous thin film coated oleic acid is restored under UV irradiation. The Ti-containing mesoporous thin film demonstrat a good degradation effect for methyl orange in aqueous solution under UV irradiation, it indicats that the film performs a good self-cleaning property.

关 键 词： 含钛介孔 薄膜 超亲水性 光催化 自洁净性能

领　　域： [化学工程] [化学工程]