Kaolin Of Zeolite Nano-TiO₂and Research Of The Photocatalytic Properties

Selection of kaolinite clay soil as a carrier, through various means of doping and surfacemodification, preparation of a variety of kaolinite clay based TiO₂composite photocatalysismaterial, the effects of preparation conditions for obtaining composite photocatalyst degradationof methylene blue in performance, and its characterization.Through different kaolinite clay nano preparation process of TiO₂research, we get theoptimal preparation conditions: water at a temperature of48℃calcination temperature is650℃, slurry concentration, hydrolysis rate of5%to20min.The kaolinite clay nano TiO₂ion doping research, obtained optimal doping concentrationCe³⁺0.5%, La³⁺0.5%¹%, N6%; La³⁺and Fe³⁺co-doped optimal doping concentration0.5%¹%. Research shows that, La³⁺and Fe³⁺ions doped than the single ion doping can promote thephotocatalytic activity.Through the Fe₂O₃to directly heat kaolin stone base nanometer TiO₂, the TiO₂can becarried out better modification, the heat dopant concentration is4%.