射频磁控溅射制备TiO2光催化薄膜的表征

更新时间:2023-05-31 12:22:39 阅读: 评论:0

书籍的籍oftheArand02gases.Sowepresumethatthefilmsshouldhavehighphotocatalyticactivities.TheXRDresultsalsoindicatedthattherewerenocontaminantsoftheotherDhasesinthefilms.赵云打野>补钙食谱
Fig.1showsthethree·dimensionmorphology
润肠通便的食物oftheTiO,thinfilmsdetectedbvAFM.AsitcanbeseenfromtheAFMimagethattheparticlesizeofthethreesamplesisaround50nm.
戢是什么意思Fig.1AFMimagesofAr/02兰0/5(a),Ar/02=20/5(b),
andAr/02=40/5(c)thinfilms
ThesurfaceroughnessofthethreesampleswascalculatedusingtheAFMsoRware。Thesurfacerough-nessof(a),(b)and(c)are10.842nm,5.533nmand4.754nm,respectively.Thisindicatestllattllesurface
roughnessisdependentonthefatiosoftheArand02flowsWhilewithoutotherparameterschanged.Thereasonisthatduringthesputteringprocess,thedifrerentcontentsofmixedgasesinfluencetheionsarrivingtonlesubs仃ate.Whent11eAr:02;40sccm:5sccm,wepresumethattheionsarrivingtothesubstratewillhavehighermeanionkineticene玛y,whichresultedinahighermolecularmobil耐.Theionswillfillnleholesremainingatthefilmsurface.SothesurfaceroughnessofthesamplepreparedundertheratioAr:02=40sccm:5
sccmisthesmaller.
Fig.2showstheRamanspectr甚9ftllethrees锄ples.Asitcanbeseenfromthefigurethatthereisonlyonesigni6cantpeakineVeIyscatteringspecnllm.Andthepeakiswidened.ThisisduetothesmaUparticleint
hefilmsaIldthefilmsarethin.
RamanShifts/cm。
福姓Fig.2Ramanspectra0fthesamples
’IhetransmittaIlcespectraofthefllmsareshowninFig.3.A11thenlmshaVeahightransparencyintheVisibleregion.Theripplesinthespectraresultf.romthesurfaceplasmaresonance.ThefilmshaVeastronglightabsorptionwhenthewavelengtllislower也all380nm.Theabsorbedlightisutilizedtoprovidetlleene糟yfortheelectronto仃ansitf}omvalencebandtoconductionband.
WaVelength/nm
Fig.3Transmittancespectraofthethinfjlms
Fig.4showsthephotodecompositionofRBsolution.
found的过去式仪容仪表的规范要求FromthefigureitcanbeseenthatthesamplespreparedatthenowrationofAr:02=20sccm:5sccmhaveahigherphotocatalyticactivity.ThisisdifrerentwiththeresultsofTakeda川eta1.Theyfoundthattllerewasnorelationshipbetweenthephotocatalyticperfo瑚anceandthesllrf.aceroughness.Ino也erwords,itme锄stllatthe

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