PROBLEM TO BE SOLVED: To provide a technology for improving purification effect in a purification device using a photocatalyst.SOLUTION: A purification device 10 comprises a substrate (a first substrate 30a and a second substrate 30b) on which a photocatalyst is carried, and light-emitting elements 42a, 42b installed within openings 34a, 34b opened in the surfaces 32a, 32b of the substrate (the first substrate 30a and the second substrate 30b) to emit ultraviolet light to the outside of the openings 34a, 34b. The purification device 10 may further include the second substrate 30b on which the photocatalyst is carried and which faces the surface 32a of the first substrate 30a. The photocatalyst may contains titanium oxide (TiO2), and the substrate may be formed of porous ceramic.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】光触媒を利用した浄化装置において浄化作用を向上させる技術を提供する。【解決手段】浄化装置10は、光触媒が担持される基材(第1基材30a、第2基材30b)と、基材(第1基材30a、第2基材30b)の表面32a、32bに開けられた開口34a、34bの内部に設けられ、開口34a、34bの外に向けて紫外光を発する発光素子42a、42bと、を備える。浄化装置10は、第1基材30aの表面32aに対向し、光触媒が担持される第2基材30bをさらに備えてもよい。光触媒は、酸化チタン(TiO2)を含み、基材は、多孔質のセラミックで構成されてもよい。【選択図】図1
