气相中二甲苯的臭氧和光降解研究  

Degradation of xylene in gas phase by ozone and UV light

作　　者：马桂霞[1] 殷永泉[2] 王珊珊[1] 

机构地区：[1]山东建筑大学市政与环境工程学院,山东济南250101 [2]山东大学环境科学与工程学院,山东济南250100

出　　处：《山东建筑大学学报》2007年第1期57-60,共4页Journal of Shandong Jianzhu University

摘　　要：用紫外线、臭氧降解气相中二甲苯(邻、间、对二甲苯),分别考察了在不同的反应条件下二甲苯的降解情况。比较了在空气或氮气的不同反应系统中二甲苯的降解情况,并对二甲苯在空气中的光降解产物及其反应历程进行了探讨;实验结果表明,在相同条件下邻二甲苯的光降解速率最大,二甲苯的光降解过程中都有中间产物生成。The degradation of xylene （p-,m-,o-xylene） by ultraviolet light and ozone was investigated in different conditions. The degradation reactions of xylene in air and nitrogen were compared. The intermediate products of xylene in the photo-degradation reaction in air and the mechanism were discussed. The experiment resuits indicated that the photo-degradation rate of p-xylene was more than the others, and the intermediate products were detected by direct GC/FID analysis under the same conditions.

关 键 词：紫外线 臭氧 二甲苯 降解 

分 类 号：X511[环境科学与工程—环境工程]