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

(1. School of Materials Science and Engineering, J inan Univers ity, J inan 250022 ; 2. School of Materials Science and Engineering, Xihua Univers ity, Chengdu 610039)

Abstract: In the article, V-La codoped Nano-TiO₂ catalyst was prepared through Sol-gel method and the structure of the TiO₂ was found to be that of anatase by XRD.Photo-catalytic degradation of Methyl orange aqueous solution under ultraviolet radiation was inves tigated from the lighting time,catalyst dosage and acidity respectively.The result indicates that the photocatalytic activity of V-La codoped nano-TiO₂ is higher than other catalysts .

Keywords: compound catalyst, Nano- TiO₂, codoping