3Sunda K, Kikuchi Y, Hashimoto K, et al. Bactericial and detoxification effects of TiO2 thin photocatalysts [ J ]. Environ. Sci. Technol. , 1998,32 ( 5 ) :325-329.
4Zhou W Y, Cao Q Y, Liu Y J, et al. The enhancement of TiO2 photocatalytic activity by Gd3 + doping [ J ]. Advances in Applied Ceramics : Structural, Functional and Bioceramics,2007,106 ( 5 ) :222- 225.
5Zhou W Y, Tang S Q, Wan L, et al. Preparation of nano-TiO2 photo-catalyst by hydrolyzation-precipitation method with metatitanic acid as the precursor [ J ]. Journal of Materials Science, 2004,39 ( 3 ) : 1139-1141.