摘要

SBA-16-supported TiO2 photocatalysts was synthesized by internal hydrolysis method. The synthesized samples were characterized in detail by X-ray diffraction (XRD), Raman spectra, N-2 adsorption-desorption, transmission electron microscopy (TEM), UV-Visible absorption spectra and X-ray photoelectron spectroscopy (XPS). The results indicated that SBA-16 retained the 3D caged-like mesostructure while TiO2 located almost inside the mesoporous channels in form of small crystals with anatase structure. The photodecomposition of Rhodamine B (RhB) in aqueous medium was selected to evaluate the photocatalysis performance of TiO2/SBA-16. The influences of different TiO2 loading were studied. The results indicated that TiO2/SBA-16 synthesized by IH method showed much higher photodegradation ability towards RhB than pure TiO2 and TiO2/SBA-15.