摘要
采用450 W汞灯做光源,对TiO2薄膜光催化氧化甲基橙进行动力学研究。结果显示:TiO2薄膜光催化氧化甲基橙的动力学可用Langmuir-Hinshelwood(L-H)方程描述。甲基橙初始浓度≤20 mg/L时,TiO2薄膜光催化氧化甲基橙表现为一级反应;甲基橙初始浓度≥24 mg/L时,则表现为零级反应。
Using 450W mercury lamp as light source,the kinetics of degradation of methyl orange with TiO2 thin films were studied.The results showed that the degradation rate of methyl orange solution could be described by the Langmuir-Hinshelwood（L-H） kinetic equation.As the original concentration of methyl orange less than or equal to 20 mg/L,the photocatalytic oxidation of methyl orange on TiO2 films followed the first-order reaction kinetics;and after more than 24 mg/L,the methyl orange reaction turned to a zero-order reaction.
出处
《河南城建学院学报》
CAS
2012年第5期36-37,46,共3页
Journal of Henan University of Urban Construction
