Preparation of Nano-ZnFe2O4 Doped TiO2 Photocatalytic Films on Porous Hayddites

Applied nano-ZnFe2O4/TiO2 photocatlytic films are prepared by template sol-gel method on porous haydites. The effects of ZnFe2O4-doping on TiO2 crystallization, sintering temperature, light absorption and photocatalysis are mainly studied, simultaneously, effect of template, amphiphilic block copolymer P(styrene-b-acrylic acid) (PS-b-PAA) on the phtocatalytic activity of ZnFe2O4/TiO2 films are also studied. The results show that right amount of ZnFe2O4-doping reduces TiO2 sintering temperature and particle size, and increases TiO2 absorbency in ultraviolet region, and a right amount of template (PS-b-PAA) forms orient arranged ZnFe2O4/TiO2 films with the high photocatalytic activity and decomposes fully methyl orange in water after light irradiating 2h.