| abstract |
(57) 【Abstract】 PROBLEM TO BE SOLVED: A photocatalyst device using a photocatalyst photocatalytic reaction for purification of air or water, sterilization, etc., which is applicable to a narrow place and has a high utilization efficiency of ultraviolet light and a compact photocatalyst. Provide a device. SOLUTION: This photocatalyst device is provided in the vicinity of a light guide 1 made of a transparent material, a thin film 4 of titanium dioxide serving as a photocatalyst formed on the surface of the light guide 1, and a light guide 1. The light guide body 1 is provided with a light emitting diode 3 which emits ultraviolet rays having a wavelength of 360 to 400 nm. Since the light emitting diode 3 is used as an ultraviolet ray source for activating the thin film 4, The entire device can be made compact. Also, Since the ultraviolet rays are sent through the inside of the light guide body 1, most of the ultraviolet rays irradiate the thin film 4, and the utilization efficiency of the ultraviolet rays is high. Therefore, it is possible to efficiently purify and sterilize air and water. |