Method for synthesis of mesoporous TiO2 and transition metals-impregnated mesoporous TiO2 with visible light activity

摘要

The present invention is synthesized mesoporous TiO ₂ using surfactants and was impregnated with a transition metal of platinum (Pt) in the pores relates to a method for producing a photocatalyst having a high activity and durability in the visible light range, by adjusting the length of the hydrophobic part of the surfactant can be adjusted to the intended size of the mesopores Depending on the synthesis conditions, several types of mesopores, such as plate-shaped and hexagonal form TiO ₂ , and can be synthesized, characterized in that in particular can be impregnated with different concentrations of a number of transition metal in the pores. ; According to the present invention mesoporous TiO ₂ and transition metals impregnated in the pores by impregnating the photocatalytic TiO transition metal only in the pores ₂ of the surface only can be kept as it is possible to sustain the catalytic activity of the photocatalyst, and further producing a photocatalyst which is active in the visible light range by a transition metal, and it is effective to increase the photoactive hereto, in the practical stage The drawback was the persistence and safety of the catalyst at the same time, and high resolution and high durability can be produced, characterized in that the visible light photocatalytic activity which is active.