Abstract: Mesoporous titanium dioxide (m-TiO2) is prepared by using P123 as template and then high efficient m-TiO2-Ag nano-composites are prepared via photoreduction method.The samples are characterized by transmission electron microscopy (TEM),X-ray powder diffraction (XRD) and Fourier transform-infrared spectroscopy (FT-IR).The photocatalytic performances of samples with different Ag contents are evaluated by degradation test of methyl orange and rhodamine under visible light.Their antibacterial properties are characterized by growth curves and inhibition rings.The results show that the modification by silver nanoparticles can improve effectively the performance of m-TiO2 in photocatalytic degradation of dyestuffs and can make m-TiO2 to exhibit excellent antibacterial properties against test bacteria.
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