WANG Dongzhi ^1,2, LIU Futian ², SHAN Lifl ², ZHANG Ning ², LIU Xin ²

(1.College of Material Science and Engineering, Xihua University, 610039; 2.College of Material Science and Engineering, Jinan University, 250022)

Abstract: Nanocrystalline titania porous films were prepared on glass substrates by sol-gel method. The surface morphology of the films and crystal phase were characterized by SEM and X-ray diffraction. The results show that many factors have infection to the quality of Ti0₂ films. For example, the quantity of adding water, the speed of rising temperature and so   on. In the experiment of photocatalytic degradation, the photocatalytic activity of nanocrystalline titania porous films was the best, the degradation rate of which was 98% in 120min.

Keywords: Nanocrystalline titania porous films, sol-gel method, photocatalytic activity