氧化锌基和氧化铜微纳分级结构构筑与性能研究

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1、河南师范大学硕士学位论文氧化锌基和氧化铜微/纳分级结构构筑与性能研究姓名：杨恕霞申请学位级别：硕士专业：化学、物理化学指导教师：高书燕20090601ABSTRACTThepromisingapplicationsofsemiconductornaomaterialsinawiderangemakethemmuchattention．Thuseffortstowarddevelopingvariousmorphology-controlledsynthesisrouteshavebeenmade．

2、Butthereareplentyofspaceintheapplicationofgreenchemistryinnanomatefialspreparation．Therefore，thisthesisfocusesonthefollowings．(1)Ag-dopedZnOmetal·semiconductornanocompositeshavebeenpreparedbythehydrothermalthermolysisofaZn(AChinthepressenceofbovineser

3、umalbumin03SA)．ThesynthesizedsampleswerestructurallycharacterizedbyX-raydiffraction(XRD)，scanningelectronmicroscope(SEM)andX-rayphotoelectronspectroscopy(XPS)．ItWaSshownthattheaddedbovineserumalbumin(BSA)servedbothasashapeconductorfortheformationofhie

4、rarchicalAg／ZnOmicro／nanostructuresandasareducingagentofAg+ions．Inthereactionprocess，thecomplexationofAg+withNH3andOH-decreaSedtheredoxpotentialofAg+／Ag，whichpreventedtheformationofisolatedAgnanoparticlesinsolution．ThepreparedAg／ZnOnanoeompositesshowe

5、dpotentialapplicationsinphotodegradationoforganicdyepollutants．Incontrasttothereportedrecipe，wehavesimplifiedtheprocedure，andmadetheroutegreen．Theresultssuggestthatthisbiopolymer-assistedhydrothermalmethodisanefficientrouteforthefabricationofAg-dopedZ

6、nOmetal—semiconductornanocomposites．(2)Bycombininggreenchemistryandhydrothermalroute，engineeringhierarchicalCuOhollowmicro／nanostmcturesWasrealizedbyatyrosine-assistedgreenstrategy．Themorphology,composition,andphaSestructureofas·-preparedpowderswerech

7、aracterizedbyX--raydiffraction,scanning,electronmicroseopendandX-rayphotoelectronspectroscopy．．TheimprovedelectrochemicalperformancetowardLiuptake-releaSeverifiestheirpotentialapplicationasanodematerialsinlithium—ionbatteries，whichattributestoathree·d

8、imensionalcurrentcollectornetworkandachemical／mechanicalrobustnessbu疏rofthe勰．formednovelCuOstructure．Keywords：Semiconductor,Silver／Zincoxide，Copperoxide，Nanomatericals，Photodegeadation,Electronicperformancem独创性声明本人郑重声明：所呈交的学位论文是我个人在导师指导下进行的研究工