【摘要】 研究无水条件下气相三氯乙烯（ＴＣＥ）的光催化降解反应及其机理，结果表明三氯乙烯的降解产物为ＨＣｌ、ＣＯ２及Ｃｌ２，光催化降解速率方程符合Ｌａｎｇｍｕｉｒ－Ｈｉｎｓｈｅｌｗｏｏｄ公式，提出了无水条件下ＴＣＥ的光催化降解机理为空穴直接氧化机理更多还原

【Abstract】 The photocatalytic degradation of trichloroethylene(TCE) in the gas phase without water using anatase titanium dioxide powder as catalyst was studied.It was proved that the products were HCl,CO 2 and Cl 2.The equation of photocatalytic degradation agreed with Langmuir Hinshelwood rate form.Reaction schemes of TCE were proposed as valence band hole direct oxidation.更多还原