PHOTO CATALYST FUNCTIONAL FILMS AND METHOD OF MANUFACTURING THE SAME

摘要

The present invention provides a photocatalyst functional film and a manufacturing method for the same. The photocatalyst functional film has a lamination structure of a base layer, a barrier layer, and a photocatalyst layer, wherein the barrier layer is SiO_2 layer and the photocatalyst layer includes: an amorphism TiO_2 layer; and a visible light active photocatalytic particle formed on the surface of the amorphism TiO_2 layer. The manufacturing method for the same includes the steps of: obtaining SiO_2 sol by dehydration and dealcoholization reactions by applying an alcohol solvent and an acid to a silicate precursor; forming a barrier layer by applying the SiO_2 sol onto a base material and drying the same; obtaining a TiO_2 amorphism sol by the dehydration and the dealcoholization reaction by applying the alcohol solvent and the acid to a titanium precursor; and forming a photocatalyst layer by applying a composition in which the visible light active photocatalytic particle is mixed into the TiO_2 amorphism sol, onto the barrier layer and drying the same.