生物模板法常温合成CdS纳米线.pdf

《生物模板法常温合成CdS纳米线.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、第29卷第3期无机化学学报Vo1．29No．32013年3月CHINESEJOURNALOFINORGANICCHEMISTRY635—641生物模板法常温合成CdS纳米线弓亚琼张贺楠z詹寰：卫增岩。苏伟*，(中北大学化工与环境学院，太原)(2DepartmentofChemistry，CityCollegeofTheCityUniversityofNewYork，NewYork，10031，USA)(DepartmentofChemistry，HunterCollegeofTheCityUniv

2、ersityofNewYork，NewYork，10065，USA)摘要：采用新型生物模板法常温合成CdS纳米线的新方法，并对其结构和性能进行了表征。SAED分析表明：生物模板表面包覆上了结晶良好的CdS纳米颗粒。TEM照片表明：CdS纳米线长(4±O．6)m，直径为(4OO±55)nm,构成纳米线的CdS颗粒尺寸为(5．5+0_3)nm。荧光光谱分析表明：该纳米线具有优异的荧光性质，使其在生物，电子领域有潜在的应用。关键词：硫化镉；纳米线；生物纳米管；模板；室温中图分类号：0649．5文献标识码

3、：A文献标识码：1001—4861(2013)03．0635—07DOI：10．3969~．issn．1001—4861．2013．00．094BiotemplatingFabricationofCdSEmbeddedBionanowiresatRoomTemperatureGONGYa—QiongZHANGHe—NanZHANHuanWEIZeng—YanSUWei，。(ChemicalIndustryandEcologyInstitute，NoahUniversityofChina,Shanx

4、i,Taiyuan030051China)(~DepartmentofChemistry,CityCollegeofTheCityUniversityofNewYork，NewYork，10031，USA)(3DepartmentofChemistry,HunterCollegeofTheCityUniversityofNewYork，NewYork，10065，USA)Abstract：CadmiumSulfide(CdS)nanowires(NWs)weresynthesizedbytempl

5、atingbionanotubesself-assembledfrombis(Ⅳ．amido-glycylglycine)一1，7一heptanedicarboxylateusingcadmiumchloridefCdCl~)andsodiumsulfide(Na2S)asCdandSprecursors．The—COOHgroupsfromthebionanotubesurfaceactaschelatingagentstocoordinateCd¨ionsandfacilitatefurthe

6、rgrowthofCdSnanocrystalsonthebionanotube．rhemorphology。structureandcompositionofCdSembeddedbionanowireswerecharacterizedbyTransmissionElectronMicroscopyfTEM)，HighResolutionTransmissionElectronMicroscopyfHRTEM)，SelectedAreaElectronDiffractionfSAED)。UV，

7、steadvstatePhotoluminescence(PL)andEnergy—dispersiveX—rayspectroscopyfEDS)techniques．TheresultsshowthattheresultingCdSembeddedbionanowires，(4+0．6)Ixminlengthand(400+_55)nmindiameter，arecoatedbyCdSnanoparticleswithdiameterof(5．5±0．3)nm．Thisworkpresents

8、aneffectivedirect．growthstrategyonbiomoleculartemplatestosynthesizemonodispersedQD—coatednanowiresatroomtemperaturebyusingcoordinationbetween．COOHandCd，whichhasnotaccomplishedpreviouslybyanyothernon—biotemplatingsyntheticmeth0ds．Keywords：CdS；n