室内微污染有机废气的纳米光催化处理

(114006),,TiO2,,,,:AbstractThepollutiongeneratedbyfittinguproomsseriouslyaffectshealthofhumanbeing.Nanometricaltechniqueandlightcatalysisap2pearintheworldrecentlyandaregenerallyconsideredasthemostprospectivetechnique.ThisarticleintroducedthehandlingofpollutioninroomsbyTiO2nanometricallightcatalysis.Thismethodcandecomposethepollutioneffectivelyandstablyinnormaltemperaturewithoutsecondarypollu2ton.Itisthemostsuitableforhandlingofthepollutioninroom.Keywords:TiO2nanometricallightcatalysishandlingofpollutioninrooms12002,90,,84.9%,1.1011.4;59.3%,1.1022.9;36.1%,1.1021.3,,,,,,,,2(TiO2)(),,,,(CO2H2OH2,N2),,,33.1,3.24GB/T155161995,155.1TiO2,3©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,1,TiO2n,(Ebg)3.2eV,387.5nm5.2-TiO2:,TiO2-(Sol-Gel),,,,:Ti(OR)4+4H2OTi(OH)4+4ROHTi(OH)4TiO2+2H2OTiO2,TiO25.3,,,5.4XRD,22XRD(1)X(XRD)XRD,Scherrer,FWHM(2)()18.21nm,TiO2,TiO2,18nm(2):TiO2TiO2,TiO2,(3)(SEM):TiO2,,SEM,,1m,1m611(mg/m3)(mg/m3)116.5552.5354.8%,,424220044©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.22mg/m3283.80168.2840.7%,40%,33TiO2,TiO2TiO2,,TiO2(20),TiO2,TiO2,,,20h(375mg/m3),75%73,,,3mg/m332.509.0472.2%8-,Ti(OBU)4,,XRD,TiO2UV-Vis,,SEM,TiO2,,75%,,(),,,,,,,,1..:.2,..:,2002.3..:,2002.4,..:,2003.5,..:,2000.6..:,2002.7,..:,2002.8..:,2002.5©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.