%0 Journal Article
%T PreparationandCharacterizationofThree-dimensionalPhotocatalyst-TiO2ParticulateFilmImmobilizedonActivatedCarbonFibers
%A 傅平丰
%A 栾勇
%A 戴学刚
%A 张建强
%A 张安华
%J 过程工程学报
%D 2006
%X Anovelthree-dimensionalphotocatalyst,TiO2particulatefilmimmobilizedonactivatedcarbonfibers(TiO2/ACFs),waspreparedbyliquidphasedeposition.ThephotocatalystwascharacterizedbySEM,XRD,BETsurfaceareaandphotodegradationofmethylenebluesolution.TiO2particulatefilm,withathicknessofnearly200nmandgrainsizesof30~50nm,wasdepositedonalmosteachcarbonfiber.TheinnerspacebetweenadjacentfibersremainedasunmodifiedACFs,therefore,bothUVilluminationandpollutedsolutionswereallowedtopassthroughthefelt-formphotocatalysttoformathree-dimensionalenvironmentforphotocatalyticreactions.WithBETsurfaceareasof400~600m2/g,theTiO2/ACFsexhibitedanenhancedadsorptionofpollutantsforphotocatalysis.ComparativedegradationsindicatedthatphotocatalyticactivityoftheTiO2/ACFswasslightlyhigherthanthatofDegussaP-25TiO2.Twospecialproperties,thethree-dimensionalstructureandcombinedeffectsofACFs'adsorptionandtitania'sphotodegradation,madecontributiontohighphotocatalyticactivity.Additionally,theTiO2/ACFsexhibitedhighstabilityandpotentiallyapplicationforpracticalusage.
%K liquidphasedeposition
%K TiO2particulatefilm
%K activatedcarbonfibers
%K three-dimensionalstructure
%K photocatalyticactivity
%U http://www.jproeng.com/qikan/Cpaper/zhaiyao.asp?bsid=327