[18p-Z18-1~16] 8.5 Plasma phenomena, emerging area of plasmas and their new applications

△ [18p-Z18-5] Ultraviolet- and Visible-light Photocatalytic Activities of Anatase/Rutile-Mixed
Phase TiO₂ Nanoparticles Annealed with Low-Temperature O₂ Plasma at Atmospheric-Pressure

〇Yuki Mimoto¹, Retsuo Kawakami¹, shin-ichiro Yanagiya^1,2, Masahito Niibe³, Yoshitaka Nakano⁴, Takashi Mukai⁵ (1.Tokushima Univ., 2.pLED Tokushima Univ., 3.Hyogo Univ., 4.Chubu Univ., 5.Nichia Corp.)

Keywords:photocatalyst, plasma

As a result of atmospheric low temperature O2 plasma assisted heat treatment of anatase / rutile mixed crystal type TiO2 nanoparticles, it was confirmed that the reactivity was improved compared to the untreated nanoparticles under ultraviolet light and visible light irradiation.However, in the electric furnace treatment, the photocatalytic reactivity was similar to that of the untreated one under ultraviolet light irradiation, but the photocatalytic reactivity was improved under the visible light irradiation in the temperature range of 500-700 ° C.