Effects of Rare Earth Oxide Doping on the Photocatalytic Activities of TiO_2

Rare earth doped TiO_2 coatings were prepared on the surface of tile by the solgel process, and the effects of rare earth oxide addition on the photocatalytic activities of TiO_2 were also investigated. Experimental results of photodecomposition Rhodamine B show that the addition of appropriate amount of rare earth oxide is effective for improving the photocatalytic activities of TiO_2.