新型磁致无极紫外灯光源光氧化性研究  

Study on Light Oxidation of A New Type of Magnetic Electrodeless Discharge Lamp

作　　者：夏东升[1] 施银桃[1] 曾庆福[1] 

机构地区：[1]武汉科技学院环境科学研究所,湖北武汉430073

出　　处：《武汉科技学院学报》2008年第2期1-4,共4页Journal of Wuhan Institute of Science and Technology

基　　金：晨光计划(项目编号:20035002016-33)

摘　　要：本实验对新型磁致无极紫外光源的发射光谱、不同波长光线在溶液中的传播、.OH的生成量、活性艳红X-3B溶液的降解情况进行了测定,并与普通汞灯进行了比较。结果表明无极紫外灯在相同功率条件下光强约为普通汞灯的2倍;在溶液中紫外光比可见光更易被吸收;.OH生成与溶液对短波长光子的吸收存在对应关系,本实验中无极紫外灯的最大氧化距离约为6cm;降解活性艳红X-3B溶液的过程符合负一级动力学关系。The new type of electrodeless discharge lamp induced by high Frequency magnetic field including spectrum; transmission of different wavelength rays in solution; generation of hydroxyl radical; degradation of reactive brilliant red X-3B was investigated and compared with mercury lamp. The results showed that （1） intensity of rays of the lamp at 400nm is two times larger than mercury lamp and ultraviolet is absorbed easily in solution; （2） production of hydroxyl radical was corresponded with the absorption of photos of low wavelength in solution and the maximal oxidation distance of the lamp is 6cm in our experiment; （3） the degradation of reactive brilliant red X-3B follows pseudo-first order kinetics and efficiency of the lamp is better than mercury lamp. Synergistic effects in degradation of reactive brilliant red X-3B is existed in the processes combined the lamp and magnetic field.

关 键 词：磁致无极紫外光源 光降解 羟基自由基 

分 类 号：O657.1[理学—分析化学]