Direct detection of OH radicals diffused to the gas phase from the UV-irradiated photocatalytic TiO2 surfaces by means of laser-induced fluorescence spectroscopy.
作者： Yoshinori Murakami , Endo Kenji , Atsuko Y. Nosaka , Yoshio Nosaka
DOI: 10.1021/JP063293C
关键词: Fluorescence 、 Laser induced fluorescence spectroscopy 、 Irradiation 、 Photocatalysis 、 Radical 、 Photochemistry 、 Chemistry 、 Gas phase 、 In situ 、 Calcination
摘要: The important roles of OH radicals for remote oxidation using TiO2 photocatalysts were evidenced by the in situ detection gas phase laser-induced fluorescence (LIF) technique. appearance OD-LIF intensities after exposure D2O vapors over powders and decrease time-resolved signals OH-LIF with increasing calcined temperatures suggested that exchangeable water at surface is origin diffused radicals.
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