溶胶-凝胶法制备锐钛矿型TiO2光催化剂及其光催化性能研究

Synthesis of anatase-type TiO2 photocatalysts by using sol-gel method and their photocatalytic performances

摘要:

本文以钛酸四丁酯为前驱体，通过调节溶胶至不同的pH，采用溶胶-凝胶法合成了锐钛矿型TiO2. 通过X-射线粉末衍射仪（XRD）表征了其结构和组成，并在光照条件下，对所合成的典型的锐钛矿型TiO2样品，进行了光催化降解甲基橙性能研究. 研究结果表明，在pH = 5.0条件下制备的锐钛矿型TiO2光催化剂展示了较高的光催化性能.

Abstract:

The anatase TiO2 photocatalysts were synthesized by using the sol-gel method with the tetrabutyl titanate as a precursor after the sol was adjusted to a desired pH value. And the structuresof theobtained TiO2photocatalystswere investigated by using X-ray diffraction (XRD). The photocatalytic activities of the typical anatase-type TiO2photocatalysts were investigated by degrading the methyl orange. The experimental results show that the anatase-type TiO2 photocatalyst obtained at the value of pH = 5.0 exhibit the higher photocatalytic activity.