| 摘要 |
An object of the present invention is to provide a photocatalyst material which fully causes a photocatalyst effect, the material comprising: a phosphorescent layer 110 which is formed above a base substance 100 , and has a light-emitting wavelength in the wavelength band of 400 to 700 nm; a translucent layer 120 which is formed above the phosphorescent layer 110 and made of photonic crystal that (i) effectively collects light entering the phosphorescent layer 110 , and (iii) effectively collects light entering from the phosphorescent layer 110 into a photocatalyst layer 130 ; and the photocatalyst layer 130 which is formed above the translucent layer 120 , and causes the photocatalyst function using light having the wavelength band of 400 to 700 nm.
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