低浓度有机废气纳米TiO2光催化处理技术

·4·工业安全与环保IndustrialSafetyandEnvironmentalProtection2006年第32卷第11期Novenmber20()6低浓度有机废气纳米Ti02光催化处理技术舒娟娟1李素媛2黄雯1杨家宽1(1．华中科技大学环境科学与工程学院武汉430074；2．宜昌技术监督局质检所湖北宜昌443000)摘要对常用有机废气净化技术进行了比较分析，以活性炭过滤网的强吸附性复合TiO：光催化剂研究为主，分析了纳米TiO：光催化处理低浓度有机废气的反应原理，叙述了几种常见负载型Ti02光催化剂的制备方法，影响TiO：光催化效率的因数及提高TiO：光催化剂的催化性能方式。关键词吸附法催化燃烧纳米TiO：光催化技术ResearchStatusofHighEfficiencyTreatmentTechnologyonLowConcentrationofOrganicGasesbyTi02Photo—catalysisTechffologySHUJuan—junlLISu—yuan2HUANGWenlYANGJia—kuan。(1．SchoolofEnvironmentalScienceandEngineering，HuangzhongUniversayofScienceandTechnologyWuhan430074)AbstractComparativeanalysesonthecommonlyusedpurificationtechnologyoforganicgasesareconducted，inwhichstudiesaremainlyconductedonthestrongabsorptionofactivecarbonfilterwebbycomplexTi02catalyst，thereactionmechanismofTi02photo—catalystisan-alyzed。themakingmethodsofseveralkindsofcommonlyusedloadingTi02photo—catalystaredescribedandthefactorsaffectingtheeffi—ciencyofcatalyzingandtheimprovementofcatalysisperformancemethodsforTi02p