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1、HansJournalofNanotechnology纳米技术,2016,6(1),14-21PublishedOnlineFebruary2016inHans.http://www.hanspub.org/journal/nathttp://dx.doi.org/10.12677/nat.2016.61003Solid-StateSynthesisofα-Fe2O3NanomaterialsandPhotocatalyticDegradationPerformanceonMethyleneBlueBijunWang1
2、,JinsongLiu1*,ZiquanLi1,JiewenHuang1,YunpengLi2,MengqiCong1,BingFeng1,JiankangChen1,KongjunZhu3,JinhaoQiu31CollegeofMaterialsScienceandTechnology,NanjingUniversityofAeronauticsandAstronautics,NanjingJiangsu2FujianInstituteofResearchontheStructureofMatter,Chinese
3、AcademyofScience,FuzhouFujian3StateKeyLaboratoryofMechanicsandControlofMechanicalStructures,NanjingUniversityofAeronauticsandAstronautics,NanjingJiangsundthrdReceived:Feb.2,2016;accepted:Feb.20,2016;published:Feb.23,2016Copyright©2016byauthorsandHansPublishersIn
4、c.ThisworkislicensedundertheCreativeCommonsAttributionInternationalLicense(CCBY).http://creativecommons.org/licenses/by/4.0/AbstractPrecursorsweresynthesizedbyasolid-statesynthesismethod.Andα-Fe2O3nanomaterialswereobtainedbythermaldecompositionofprecursorsatdiff
5、erentcalcinationtemperatures.Thecrys-talstructure,microstructuremorphologyandopticalpropertiesoftheα-Fe2O3nanoparticleswerecharacterizedbyX-raydiffraction(XRD),Fouriertransforminfrared(FTIR)spectroscopy,Fieldscanningelectronmicroscopy(FESEM),andUV-visdiffuserefl
6、ectancespectroscopy(DRS).Theresultsshowthattheenergygapandparticlesizeoftheα-Fe2O3nanomaterialsincreasewithan-nealingtemperature.Buttheyarealllessthanbulkα-Fe2O3(2.2eV).Theα-Fe2O3nanoparticlespreparedat500˚Cfor2hexhibitthehighestvisible-lightphotocatalyticeffici
7、encyof70.60%andphotodegradationrateconstant,k,of6.78×10−3min−1,respectively.Toohighortoolowheattreatmenttemperaturewillresultinthedecreaseofphotocatalyticefficiency,whichismainlyaf-fectedbybandgapandelectron-holerecombinationprobability.KeywordsSolid-StateSynthe
8、sis,α-Fe2O3,Nanomaterial,Photocatalysis*通讯作者。文章引用:王碧军,刘劲松,李子全,黄洁文,李云朋,丛孟启,冯冰,陈建康,朱孔军,裘进浩.α-Fe2O3纳米材料的固相合成及光催化降解亚甲基蓝性能[J].纳米技术,2016,6(1):14-21.http://dx.doi.org/10.126
