P3 超音波霧化を利用したガス状汚染物質の光触媒分解に関する研究

概要

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In this study, we suggest the VOCs removal process using ultrasonic atomization and photocatalysis. The removal process uses a special mist with TiO_2 photocatalyst (we named it Ultrasonic Mist with Photocatalyst: UMP), and in fact the presence of the photocatalyst in the mist was confirmed with a scanning electron microscope photo (SEM photo). UMP was dispersed in a reactor and that photocatalysis took place by UV light (main wavelength 365 nm or 254 nm (with 5% 185nm)). This process is able to remove a gaseous toluene. The toluene removal ratio increased at condition of UMP+UV and increasing photocatalyst amount in the water. Toluene removal ratio was higher using a 254nm (with 5% 185nm) UV lamp than using a 365nm UV lamp, because on the first generated O_3 and hydroxyl radical, have strong oxidation effect on VOCs.
日本ソノケミストリー学会の論文
2005-10-14