WATER-BASED PHOTOCATALYST COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a photocatalyst composition and a coating material excellent in dispersion stability and efficiently retaining photocatalytic activity and/or hydrophilicity for a long period and a coated article.

SOLUTION: The photocatalyst is a modified photocatalyst obtained by modification treatment by (1) a modification agent compound having an organosilane unit and/or (2) at least one kind compound selected from a group consisting of oxides of silicon and/or aluminum, wherein the primary particle diameter of the photocatalyst is 1 to 100 nm.

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