外文翻译英文纳米结构Bi2S3的制备及其特性.docx
- 文档编号:26747146
- 上传时间:2023-06-22
- 格式:DOCX
- 页数:7
- 大小:19.96KB
外文翻译英文纳米结构Bi2S3的制备及其特性.docx
《外文翻译英文纳米结构Bi2S3的制备及其特性.docx》由会员分享,可在线阅读,更多相关《外文翻译英文纳米结构Bi2S3的制备及其特性.docx(7页珍藏版)》请在冰豆网上搜索。
外文翻译英文纳米结构Bi2S3的制备及其特性
PreparationofNanostructuresandPhotoluminescenceBi2S3
ZHANGWeixin,QIUMo,ZHANGJunjun,YANGZeheng,CHENMin
(SchoolofChemicalEngineering,HefeiUniversityofTechnology,AnhuiKeyLaboratoryofControllableChemicalReaction&MaterialChemicalEngineering,Hefei230009,China)
Abstract:
Bismuthnitrateandsodiumsulfideasrawmaterial,two-stephydrothermalmethodwassuccessfullypreparedat100℃Bi2S3orthorhombicmicroring;Youyibismuthnitrateandthioureaastherawmaterial,theuseofstephydrothermalsynthesizedat150℃withOrthorhombic'sBi2S3nanorods.Respectively,X-raydiffraction,fieldemissionscanningelectronmicroscopy,transmissionelectronmicroscopyandfluorescencespectrometryandothermeansoffinalproducttestingphase,morphologyandpropertieswerecharacterizedtoexplorethemechanismofringformationBi2S3microns.Theresultsshowedthat:
Bi2S3microndiameterring1~1.5μm,externaldiameterof1.5~2μm,theaveragesizeofabout100nminthenano-grainsassembled.Bi2S3nanorodsdiameterofabout125nm,alengthof1~2μm.Bi2S3micronandnano-rodBi2S3ringemissionpeakat447nmand470nmarelocatedat,Bi2S3micronemissionpeakpositionofringBi2S3nanorodscomparedtotheemissionpeakpositionwasablueshift.
Keywords:
bismuthsulfide;hydrothermalmethod;nanostructure;photoluminescence
Theperformanceofnano-materialsdependsnotonlyonitsownstructureandcomposition,butalsothesizeandshapeandmaterialsarecloselyrelated,andthusthesizeofnano-materials,structureandmorphologyofcontrolsynthesistooptimizematerialproperties,notonlyhasimportantTheoreticalsignificancebutalsobroadentheapplicationareasofnano-materials,whichhasbecomethefieldofsyntheticchemistryandmaterialsresearchfocusofafront,causingresearchers[1]wideinterest.Becauseofitscentralringhasaveryspecialholeandhasmanyspecialproperties.Forexample:
Aizpuruaotherstudyfoundthattheholeinthecentergoldringhasastrongeffectofuniformmagneticfield,whichmakesresearchinsensingandspectroscopycanbeusedasnano-holeresonancetosupportortestothersmallernano-structuredmaterials.[2]Inaddition,Rothmanmagneticringandothermaterialsfoundinhighdensitymagneticstorageandmagneticrandomaccessmemoryalsohaspotentialpracticalapplications.[2]
Thevulcanizedbismuth(Bi2S3)isakindofimportantsemiconductormaterial,itsbandgapisa1.2~1.7evs,giveorgetanelectricshockinthethermal,optoelectronicsandelectrochemistry[3–5]keepaspectslikehydrogen,etctohavepotentialapplicationworth.Inrecentyears,Naricethecompositionofthestructurevulcanizedbismuthcausedtheextensiveconcernoftheresearcher.Currently,atNaricestructurethevulcanizedbismuthcontainalotofwiresthatreport,mainlyhaveaNarice[the6],Nariceisgood[7],Naricenecklace[8]andpan-likeinshape[5]androse-likeinshape[9]etc.constructionstructure.TheLiwaits[5]withthechlorinationbismuthisinthehydrochloricacidaqueoussolutionwatersolutionincomechlorinationoxidizingbismuthforforerunnerbody,withsulfurgenerationAnforsulfursource,in60℃oftenpressdowntomakefromthediameteraboutthe30nms,lengthfortheNariceofthe150~200nmsrodweaveofaveragediameterforthethinpan-likeinshapevulcanizedbismuthof2μm.Thethounationalprosperitywaits[9]withjusttherightamountoflaurelacisthesulfurAnsalt(saltof2-undecy1-1-dithioureido-ethyl-imidazoline,SUDEI)forsurfaceliveagent,takechlorinationbismuthandsulfurgenerationMaoAnasrawmaterial,adoptmeltingagentthermallegalsystemhavetherose-likeinshapespheroid(diameteraboutoneμm)structurethatisappliedbytheslab-likeinshapevulcanizedbismuthcurloverlay.Alsohavethejotthesearchconcerningvulcanizedbismuthnanotubetoreportmoreover.Forexample,isfirmanduncompromisingtowait[10]takethenitricacidbismuthandthevulcanizedsodiumastorespondrawmaterial,adoptwaterthermallawtoresponda12hunder120℃andmadeavulcanizedbismuthnanotube.
Theexperimenttakesthenitricacidbismuthandthevulcanizedsodiumasrawmaterial,underthesistuationthatdidn'tmakeuseofanymoldplate,adopttwowaterthermalcompositionlaw,successfullymadevulcanizedbismuthmicronring.Inquiredintotheformingmechanismofthevulcanizedbismuthmicronring.Riceforcarryingonacomparewiththevulcanizedbismuthmicronringgaininginthestructure,performance,andthenadoptinghotlegalsystemofone-stepwatertohavevulcanizedbismuthNarod.Comparedtheluminescencequalityofthesetwokindsofdifferentfaciallookvulcanizedbismuths.
1.Test
1.1Thepreparationofsample
Therawmaterialthatexperimentusesforthevulcanizedsodium,havenowaterether,nitricacidbismuth,sulfurMao,16alkylthreeAradiclebrominestoturnAnandsulfuricacid.Abovethetryinganagentalltriesanagentfortheanalysispurelydomesticchemistry,theexperimentisusedwaterasdistilledwater.
TwowaterthermallawmakesthestepofBi2S3micronringasfollows:
Squareonewaterishot:
Calltotakea0.05gs16alkylsthreeAradiclebrominesturnAn(cetyltrimethylammoniumbromide,CTAB)toputintoa150mLthebeakerandjoin40mLdistilledwater,thenputbeakeronthemagneticforcestirrerconstantlytherabblingmakeCTABresolvefull.Callagaintotakethe0.2gnitricacidbismuthtoputtogointobeaker,goontomixblendcertaintime.Thenhangamuddyliquidofincometotransferaninnerliningthe50mLhighpressurepotgatheringfourfluorineethylenesamid,placeagaintotakeoutaftertheconstanttemperature7hin100℃ovens,naturalcooling,usedistilledwatertowashawaydirtsedimentsformanytimes,thengetforerunnerthing.
Thesecondtreadswaterthermal:
Willupgainaforerunnerthingtoputtogointoprosperoushavea40mLofinthebeakerofdistilledwater,thenputthebeakertoconstantlymixblendonthemagneticforcestirrer,againusetomovealiquidtubetomovetotakealittleamountsolutionconcentrationtogointobeakerforthe0.6mol/Lvulcanizedsodiumdropandgoontomixblendcertaintime.Hangamuddyliquidofincometotransferaninnerliningthe50mLhighpressurepotgatheringfourfluorineethylenesamid,placeagaintotakeoutaftertheconstanttemperature4hin100℃ovens,naturalcooling,usedistilledwatertowashawaydirtsedimentsformanytimes.
Sparsesulfuricaciddissolution:
Willupgainsedimentstoputtogointoprosperoushavea20mLofconcentrationforthebeakerof2mol/Lsparsesulfuricacidsolution,theindoortemperaturestatafterplacingaboutthe8hsusesdistilledwater,havenowateretherwashawaydirtsedimentsformanytimesanddryin60℃it,thengetBi2S3micronring.
Theone-stepwaterthermallawmakesthestepoftherodoftheBi2S3Nariceasfollows:
Calltotakethe0.1gnitricacidbismuthand0.2gsulfurMaotoputintoa150mLthebeakerandjoin40mLdistilledwater,thenputbeakeronthemagneticforcestirrerconstantlyrabbling,receiveblacktohangamuddyliquid.Hangamuddyliquidofthisblacktotakeoutaftertransferingtotheappositioninthe50mLhighpressurepotintheconstanttemperature14hin150℃ovens,naturalcooling.Usedistilledwaterandhavenowaterethertowashawaydirtsedimentsformanytimes,thesampledriesin60℃,thengettheBi2S3Naricerod.
1.2Outcometoken
UseD/max–xrdtypetheXshootwireYantoshoot(X-raydiffraction,XRD)instrumenttocarryonthingphaseanalysistothesample.TakeCuKαastoradiateasource,λ=0.15418nms,takecareofthevoltageas40kvs,takecareofthecurrentas100nms,scanrangein10°~70°.UsetheacceleratingvoltageasJEOLofthe10kvs7500BtypethefieldfiringHitachiofscanningtheelectricmirror(field-emissionscan-ningelectronmicroscopy,FESEM)andtheacceleratingvoltage200kvs–800deeplyshootelectronmicorscope(Transmissionelec-tronmicroscopy,TEM)thefaciallookandstructureofthetokensample.UseHitachiF–4500fluorescencespectrophotometers(fluorospectro-ph-otometry,PL),theexcitationlightsourcetestingsthefluorescencespectrumofsampleundertheindoortemperaturefortheXelamp.
2.Resultanddiscussion
2.1XRDofoutcomeisanalytical
Figure1istwowaterthermallawandone-stepwaterthermallawincomeoutcomeofXRDtable.Figure1amidoftablewire1andtablewire2differencebethermalfortwowaterlawandone-stepwaterthermallawincomeoutcomeofXRDtable.AllcanthebeaconchangeintothequadraturephaseBi2S3.(JCPDF,No.06–0333)Thereactiontemperatureoftwowaterthermallawrespondsfor100℃,one-stepwaterthermallawcarryingonunder150℃.Fromfigure1amidcandiscover:
One-stepwaterthermallaw'sgainingtheYanofoutcometoshootpeakintensityishigherthantwowaterthermalthelawgainoutcome.Respondatemperatureexaltation,theYanofsampleshootspeakenhancement,thequasipeakbreadthnarrowsdown,thisinstructionwithrespondtemperaturescale-up,outcomecrystalexaltationforturningadegree.
Fig.1X-raydiffraction(XRD)patternsoftheproductspreparedviathetwo-stephydrothermalmethodandtheone-stephydrothermalmethod
2.2TheBi2S3micronannularbecomesmechanismanalysis
FormingmechanismofbywayoftoBi2S3micronringprogressquest,madeuseofFESEMandTEMtoobservesquareonewaterthermalsystemofthefaciallookandstructureoftheforerunnerthing.Figure2istheFESEMandTEMphotographofBi2S3micronringforerunnerthing.Fromthefigure2asitisthusclearthat:
Forerunnerthingfromagreatdealofbiscuit-likeinshapecircleslabcomposition,it
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 外文 翻译 英文 纳米 结构 Bi2S3 制备 及其 特性