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1、NanotitaniumdioxidewiththeenvironmentAbstractNowadays,withoutstandingdevelopmentofindustry,environmentbecomesseriouslycontaminated,whichdirectlyaffectspeople’shealth.Determinationandremovaloforganicpollutants,therefore,drawagreatdealofattentions.Inthispart,somebasicresearchshavebeencarriedoutbasedo
2、nusingthemodifiedtitaniumdioxideforanalysisandremovalofsomeorganicpollutants.Baseontheoptical/electricalactivityofthetitaniumdioxide,newtitaniumdioxidenano-compositematerialswerefabricatedbymodificationofthetitaniumdioxidenanotubearraysfordeteterminationandremovaloforganicpollutantsinenvironment. I
3、ntroductionNanometertitaniumdioxideasahighlyefficient,non-toxic photocatalyst moreandmorewidelyappliedinthefieldofenvironmentalconcernandpaidattentiontopeople.NanometerTiO2antibacterialmaterialwithitsexcellentantibacterialperformanceisbecomingtooneofthehottopicsinthestudyofdevelopment,inordertoapp
4、liedinwatertreatmentequipment,medicalequipment,foodpackaging,buildingmaterials(suchasantibacterialfloortile,antibacterialceramicsanitaryfacilities,mortar,antibacterialcoating,etc.),dailynecessities,cosmetics,textilesandhouseholdappliancesandotherfields.Theapplicationofnanometertitaniumdioxide1,gasp
5、urificationEnvironmentharmfulgascanbedividedintoindoorharmfulgasandairpollution.Indoorharmfulgasaremainlydecorativematerialssuchasreleaseofformaldehydeandthelivingenvironmentofmethylmercaptanandhydrogensulfideandammonia,etc.TiO2photocatalysiscandecomposetheadsorptiononthesurfaceofthesesubstancesoxi
6、dation,thuslowertheconcentrationofthesesubstancesinair,reduceoreliminateenvironmentaldiscomfort.Atmosphericpollutiongases,mostlyfromautomobileexhaustandindustrialwastegassuchasnitrogenoxidesandsulfuroxides.UseofnanometerTiO2catalysttothegasofsulfuricacidandnitricacidoxidationintosteamdown,intheproc
7、essofrainfall,soastoachievethepurposeofreducingairpollution.Inthebedroom,office,glass,ceramicsandotherbuildingmaterialscoatedonthesurfaceofTiO2photocatalyticfilmorputTiO2photocatalyticdevicesintheroom,allca