資源描述：
《制備高純氟化鋇和微乳液合成納米氟化鋇的過(guò)程的的研究》由會(huì)員上傳分享，免費(fèi)在線閱讀，更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、AbstractBaF2hasspecialphotoluminescencecharacteristicsasnewscintillatingcrystalandgoodopticalmatrixmaterial．ThehighpurityBaF2waspreparedwithammoniumfluorideandbariumchlorideasrawmaterialinaqueoussolution．ItWasstudiedonthechangesofthestructuralparametersofW／O
2、microemulsionsystemsCTAB／alcohol／n-heptane／waterwimtheincreasingofWoorcarboatomicnumbersofstraightchainalcoh01．BaF2andBaF2：Ce3+nanoparticleswerepreparedfromW／Omicroemulsionsystems吼婚
3、n-butanol／n-heptane／water．AnewtechnologyWasthepreparationofthehighpurityBaF2
4、fromammoniumfluorideandbariumchloride．TheoptimumoperationalconditionsforthepreparationofBaF2werereactiontemperature25℃，reactiontime60min,initialmassconcentrationofbariumchloride10％，n(NI-hF)：n(BaCl2)--2．2，theratioofwashingamounttofiltercakeamount=10：1，washed3
5、times．ThepurityofBaF2Wasupto99％．Theprocedurehasshortflowrouteandgoodeconomicbenefits．DilutionWasusedtomeasureandcalculatethestructuralparametersofW／OmicroemulsionsystemsCTAB／alcohol／n-heptane／wateratdifferentmoisturecontentsanddifferentalcoh01．IntheW／Omicroe
6、mulsionsystemsCTAB／alcohol／n-heptane／water,謝mtheincreaseofmoisturecontent，theradiusofinnerwaterdropletrtw，theeffectiveradiusofparticle＆，thelengthofinterfacelandtheaverageaggregationnumberofsurfactantngraduallyincreased．Butthetotalinterracialareaofdispersedph
7、aseAdandthetotalparticlecountNdgraduallydecreasedinthissystems．Whenn-ButanolWasthecosuffactant，thesystemof-△Gc0“l(fā)inearlydecrease．WhenmediumchainalcoholandlongchainalcoholWasthecosurfactant，thesystemof_△Gc0斗idecreasedandthenincreased．Asthecarboatomicnumbersof
8、straightchainalcoholincreased，theradiusofinnerwaterdropletRw,theeffectiveradiusofparticle＆，thelengthofinterface1，theaverageaggregationnumberofsurfactantnandGibbsFreeEnergy-△Gkgraduallyincreased．ButthetotalparticlecountNdandthetotalinterracialareaofⅡdispersed
9、phase～graduallydecreased．BaF2andBaF2：Ce3+nanoparticleswerepreparedfromW／OmicroemulsionsystemsCTAB／n-butanol／n-heptane／water．BaF2andBaF2：Ce3+nanoparticleswerenallosphericalparticles，andthediamete
