| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a high value-added substance conversion method and a high value-added substance conversion device which can efficiently produce a high value-added useful substance such as hydrogen, methane, methanol by irradiating light of wavelengths of a visible light region and ultraviolet ray region, such as a sunlight, on a composite photocatalyst to dissolve carbon dioxide and water under a gas-phase atmosphere. <P>SOLUTION: The composite photocatalyst 3, which is formed by carrying a photocatalyst on silica mineral or artificial fiber, is housed in a container 1 having a translucent part 2 at least partially. Mixed gas of the carbon dioxide CO<SB POS="POST">2</SB>and water vapor is distributed in the container to make contact with the composite photocatalyst, and the light 4 of the wavelengths of the visible light region and ultraviolet ray region such as the sunlight is irradiated on the composite photocatalyst. Thereby, the carbon dioxide and the water in the mixed gas are dissolved in the gas-phase atmosphere to produce the high value-added useful substance 5. <P>COPYRIGHT: (C)2013,JPO&INPIT |
