A novel approach of SBA-15 mesoporous materials decorated with various amount of TiO2 (10–30%TiO2/SBA-15) were prepared by the post-synthesis method using metatitanic acid as precursor and template-retentive SBA-15as support. The result shows that the silica framework was stable and it was almost not affected by appropriate titania deposition. The photocatalytic activity of the samples was tested by degradation of methyl orange (MO), which was increased with increasing TiO2 loading ratio at first and then decreased. The 17%TiO2/SBA-15 composite calcinated at 600 °C showed the highest photocatalytic ability for degradation of MO because of its appropriate amount of TiO2 and less agglomeration.
