静电纺丝方法制备无机纳米纤维与其性能分析-(6241)

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1、StudyonthePreparationandPropertiesofElectrospunInorganicNanofibersAbstractStudyonthePreparationandPropertiesofElectrospunInorganicNanofibersAbstractOne-dimensionalnanomaterials,whichhavedesirablestructureandfunctionalities,havebeenasubjectofrecentinvestigationduetotheirpotentialim

2、portance.Varietykindsoforganicand/orinorganicnanofibers,nanobeltsandnanowireshavebeensynthesizedandapplied.Elelctrospinningtechniqueisasimpleandversatilemethodtopreparecontinuousultrafinenanofiberswithdiametersdowntomicroandnanoscale.Varietykindsofinorganicnanofiberscanbepreparedb

3、yadjustingtheingredientofthespinningsolution.Thehierarchicalnanofibershavehighsurfacearea,whichhavebeenappliedinuniversitylaboratoriesandindustry.Thenanofiberscanbeappliedincatalysis,sensors,opticaldevices,filtrationandbiomedicalapplication.Inthispaper,inorganicnanofibersweresynth

4、esizedbysol-gelprocessingandelectrospinningtechnique,includingsilicaandtitaniananofibers.Wesystematicallyinvestigatedtheparameterswhicheffectedthestructureofthenanofibers.Wealsoinvestigatedtheadsorptionpropertyandthephotoelectricpropertyofthenanofibers.Theresultsasfollowed（1）Prepa

5、rationofsilicananofibers:TEOSandPolystyrene(PS)wereaddedtothePVPsolutiontopreparespinningsolution.PSnanoparticalswereincorporatedintothesilica/PS/PVPnanofibersasthepore-precursors.Hierarchicalporousnanofiberswithmicro-andmesoporeswereconvenientlyobtainedviathecalcinationmethod.Wef

6、oundthattheporosityandporesizeofthepreparednanofibersincreasedwiththeparticleconcentrationofthespinningsolutionincreasedunderafixedfeedingrate,applieddistanceandcollectingdistance.（2）Studyontheadsorptionperformanceofthesilicananofibers.SilicananofibersweresoakedintheRhodamineBsolu

7、tion.Aftercertainsoakingtime,opticalIIIAbstractStudyonthePreparationandPropertiesofElectrospunInorganicNanofibersabsorptionspectraofthesolutionsweremeasuredtocharacterizethedyeadsorptionperformanceofpreparedsilicananofibers.Thedyeabsorptionabilitywasincreasedwiththequantityandvolu

8、meofthemesoporesonthesurfaceofsil