光催化氧化降解染料中电子转移体的选择  

SELECTION OF ELECTRON-TRANSMITTER IN DYE DEGRADING BY PHOTO-CATALYTIC OXIDATION

作　　者：丰敏[1] 陈集[1] 饶小桐[1] 牟丹[1] 罗建生[1] 

机构地区：[1]西南石油学院化学化工学院,四川南充637001

出　　处：《西南石油学院学报》2003年第3期66-68,共3页Journal of Southwest Petroleum Institute

基　　金：西南石油学院科研资助项目

摘　　要：利用两种不同的催化剂 ,进行了不同光源和不同电子转移体时光催化氧化降解甲基橙和工业染料的实验。用O2 作为电子转移体时 ,催化剂降解效果很低 ;但以H2 O2 作为电子转移体时 ,催化剂在太阳光照射下仅需 2 0min左右就可使甲基橙的降解效果达 90 % ,对浓度为 1 0 0mg/L的实际工业染料 ,可达 50 %～ 60 %的COD去除率和接近完全脱色的效果。通过实验结果得出 :电子转移体对电子的有效转移对光催化氧化过程的重要性 ,并评价出H2 O2Two kinds of catalysts have been used to degrade methyl orange and dyes under the different light lamp and with different electron transmitter. The catalysts have low activity when the transmitter is O 2, while the catalysts show high activity when the transmitter is H 2O 2. After 20 minutes reaction under sun light, the degradation of methyl orange can reach 90% and the COD remove ratio of the dye can reach 50%～60% and it has little color. Results have showed that the electron transmitter is one important factor for the process of effective photo catalytic oxidation and H 2O 2 is more effective than O 2 as electron transmitter.

关 键 词：催化剂 光催化氧化 电子转移体 染料 

分 类 号：TQ426.8[化学工程] TE624.4[石油与天然气工程—油气加工工程]