| 摘要 |
PROBLEM TO BE SOLVED: To solve such a problem that photocatalytic particles are completely buried into a binder layer and thereby enable the photocatalytic particles to be irradiated with ultraviolet rays effectively by forming the binder layer on the surface of a base material which forms a wall body for sectioning a living space and forming a photocatalytic particle layer consisting of TiO2 or the like in such a way that the photocatalytic particles are exposed from the binder layer. SOLUTION: A glaze layer 2 as a material hardly degradable by the photocatalytic function of photocatalytic particles is applied to the surface of a tile body 1 as a platelike member which forms a wall face. In addition, anatase-type TiO2 particles 3 as the photocatalytic particles are sprayed, in a sol form, to the surface of the glaze layer 2 using a spraygun or the like. Further, the glaze layer 2 is thermally melted and then the melt is cooled and set. The TiO2 sol is sprayed to the surface of the glaze layer 2 and some of the TiO2 particles is allowed to be embedded into the glaze layer 2 so that the TiO2 sol is not completely embedded in the glazed layer 2, while the remainder of the TiO2 particles 3 are retained in the glaze layer 2 in such a state that the remainder is exposed. Thus the exposed part of the TiO2 particles is directly irradiated with ultraviolet rays from a lamp to enhance the photocatalytic effect. |
