Possibility of photocatalysis in the dark by combining TiO2 photocatalyst with long afterglow phosphor
会议名称:《中日环境产业与环境经营研讨会》
会议日期:2004年
学科分类:081705[工学-工业催化] 08[工学] 0817[工学-化学工程与技术]
关 键 词:photocatalyst long afterglow light-storing phosphor
摘 要:正Four kinds of photocatatyst including TiO2 and TiO2-xNx powers, TiO2 and TiO2-xNx coated Al2O3 powders, TiO2 film and a novel light-storing photocatalyst were synthesized and characterized in this paper. TiO2 and TiNxO2-x have photocatalystic activity under irradiation of visible LED lights, suggesting the possibility of combining TiO2 photocatalyst with long afterglow phosphor to obtain a new light-storing photocatalyst. The novel light-storing photocatalyst can decompose environmental pollutants under light irradiation and has decorative ability in the dark. The most interesting is that the long afterglow phosphor can absorb and store light from the irradiation source and supply light for the TiO2 photocatalyst when the light source is cut off.