2018 Volume Annual56 Issue Abstract Pages S168
It is currently subject to regulation formaldehyde, which has been used in hospitals. Then removal of harmful and unpleasant smell technique is an important. Therefore, we have studied that the odor removal system with photocatalyst which is safely and easily. When electrons in photocatalyst titanium oxide are excited by the ultraviolet, the odor molecule are oxidized and decomposed into CO2 and H2O by photochemical reaction. For quantitative measurement of odor was done by CO2 and vapor sensor and the organic concentration sensor. We made odor reduction system 21 cells of ultraviolet LDEs (wavelength of 375nm) mounted in box (total output 571 mW, with battery 12V), with a fan (flow rate 38 mL/min). For organic matter related to humans, CO2 was increased and the odor intensity was reduced within 30 minutes. In this way, decomposition of odor of acetic acid, formic acid, isovaleric acid, ammonia, formaldehyde could be decomposed.
