介质阻挡放电-光催化净化汽车尾气中的NO  

DBD Links with Light Catalyze to Reduce the NO from Vehicle's Tail-gas

作　　者：田晓梅[1] 何翔[1] 王喜眉[1] 

机构地区：[1]中南民族大学电子信息工程学院,湖北武汉430074

出　　处：《环境监测管理与技术》2006年第2期11-14,共4页The Administration and Technique of Environmental Monitoring

基　　金：国家民委科研基金资助项目(05ZN03);湖北省等离子体化学与新材料重点实验室开放课题基金资助项目(PCAM0503)

摘　　要：利用介质阻挡放电(DBD)和光催化相结合可以净化汽车尾气中的NO。介绍了DBD及其与TiO2联合作用时NO初始体积分数、混合气体流量和放电参数对NO净化的影响,实验结果表明,无论有无TiO2催化剂,NO的净化率都随着NO初始体积分数的增加而降低,随着混合气体流量的增大而减小,也随着放电电压的升高而升高。在相同条件下,加入光催化剂后,NO的净化率有了不同程度的提高,而且初始体积分数越低、气体流量越小、放电电压越高,光催化效果越明显。DBD linking with light catalyze can reduce the NO from vehicle＇s tail-gas. This article introduced the purification effect on the NO from initial concentration, mixed gas flow and the discharge parameters when DBD and its joint role with TiO2. The results had shown, with or without TiO2 as the medium, the purification rates would increased with lower initial concentrations of NO, and would reduced with the increased mixed gas flow, and would increased with the rise of discharge voltage. In the same conditions, to optical catalyst, no purification rate with varying degrees of improvement, when the light catalyze came into the tail gas, the purification rate has some increased, and with the lower initial concentration and the smaller gas flow and the higher discharge voltage the light catalytic effect will be more and more obvious.

关 键 词：介质阻挡放电 光催化 汽车尾气 NO 净化率 

分 类 号：X831[环境科学与工程—环境工程]