The Synthesis and Photocatalytic Performance of Samarium Doped Mesoporous Titania
The meso-porous TiO2 and Sm-doped meso-porous TiO2 were synthesized by a sol-gel method. Polyethylene glycol, with different added content, was added as a structure-directing agent. The prepared meso-porous TiO2 was characterized by nitrogen adsorption, X-ray diffraction and ultraviolet-visible diffuse reflectance spectroscopy, and the photocatalytic performance was evaluated by the decomposition of methyl orange. The results revealed that PEG plays a key role in creating porous structure during the heat-treatment. The photocatalytic performance of TiO2 is improved by adding proper content PEG, and Sm-doping can further promote the photocatalytic performance.
Prof. Dongyan Shi
J. W. Shi et al., "The Synthesis and Photocatalytic Performance of Samarium Doped Mesoporous Titania", Applied Mechanics and Materials, Vol. 876, pp. 15-19, 2018