Development of odor removal device using titanium oxide

Abstract

The chemical substances of odors have been problem in hospitals. And removing those odors is improve the patient comfort and the quality of treatment. Therefore, we designed to make odors removal device with high odor removal ability using titanium oxide. Titanium oxide is a kind of photo catalyst, and the chemical substances are decomposed by irradiating ultraviolet light. The design requires that substances of odors are adsorbed on the surface of the titanium oxide. We improved the quantity of air inflow, the method of irradiating ultraviolet rays, the titanium oxide film with high decomposition efficiency. This could be change the titanium oxide from rutile type to anatase type, which is a different crystal structure. And we changed the distance between the titanium oxide file and the ultraviolet light source (LED Wavelength is 380nm), also changed optimized input power. Then this new device decomposed more effectively than previous one.