| abstract |
The photocatalyst composition is a visible light-responsive photocatalyst being applicable to various applications, and exerts effect for the purification of harmful materials in the air, the decomposition and removal of dirt, anti-bacterium, and mildew resistance even under the irradiation of light mainly composed of visible light like a fluorescent lamp, and the composition is characterized in that the composition comprises the tungsten oxide that the primary particle diameter of the crystal is 10 to 100 nm and the crystal structure measured by X-ray diffraction is WO x (2.5≦X≦3.0). |