Photocatalyst TiO2,Fe3+/TiO2,La3+/TiO2 and Fe3+-La3+/TiO2 were prepared by sol-gel method and its decolorization performance of methylene blue under ultraviolet were investigated.

• 采用溶胶-凝胶法,制备了TiO2、Fe3+/TiO2、La3+/TiO2、Fe3+-La3+/TiO2光催化剂。