沉淀法制取纳米材料

Vol137No11190NEWCHEMICALMATERIALS3711200911:(0728088):(1978-),,,,/(,,541004)(CNTs)(ZnO),(SEM)X(XRD)(TGA):014mol/L110mol/L,,,,40nm;,CNTs/ZnO;,,;,,,,,PreparationofCNTs/ZnOcompositesbyhomogenousprecipitationmethodMaChuanguoZhengHaijunLuWeiYuYingjun(DepartmentofInformationalMaterialScienceandEngineering,GuilinUniversityofElectronicTechnology,Guilin541004)AbstractThenanocompositesparticlesofcarbonnanotubes(CNTs)loadedzincoxide(ZnO)nanoparticleswerepreparedusinghomogenousprecipitationmethod.Thecompositeparticleswerecharacterizedbythemeansofscanninge2lectronicmicroscope(SEM),X2raydiffraction(XRD)andthermogravimeticanalysis(TGA).TheresultsshowedthattheCNTs/ZnOcompositeswereobtainedwhentheconcentrationofzinc2ionwasintherangefrom014mol/Lto110mol/L.ThediameteroftheZnOparticleswithparticlestopographywassmall,about40nmandwelldistributed.TheinteractionbetweenZnOparticlesandCNTswasstrongandthecompositeswerestableunderultrasonictreatment.Withextendingreactiontime,boththecontentandcrystallitesizeofzincoxideparticleswereincreased.Moreover,thecrystallitesizeofzincoxideparticleswasobviouslyincreasedwhenthethermaldecompositiontemperaturewasincreased.Keywordscarbonnanotubes,oxidezinc,homogenousprecipitation,composite(CNTs),:Pt[1]Fe[2]Ni[3]Co[4],Fe2O3[5]MnO2[6]TiO2[7]ZnO[829](ZnO),,,2[10],,,/[829],,/,,/1111,,95%,4060nm,515m;(Zn(NO3)26H2O)(CO(NH2)2),(SEM)(JSM25610LV),;X(XRD)(DS2ADVANCE),;(TG),RZS,112,,,[11]:CNTs,CNTs,20%2h,406h,,,12012hCNTs/ZnO,11:/Zn(NO3)2CO(NH2)2,,95,,,80C8h,,,/2002211TG(TGA)CNTs/ZnOZnO1CNTsCNTs/ZnO,CNTs,CNTs,500,700,CNTsCNTs/ZnO2,,190,200,CNTs/ZnOm0;CNTs,ZnOm1TGAZnOm1CNTs/ZnOm0,[m1/(m0-m1)]100ZnO2ZnO1CNTs(a)CNTs/ZnO(b)21111ZnO,,ZnO2ZnO,,,ZnO,2h,ZnO,2h,,ZnO21112ZnO()1,ZnO,2,,ZnO78%79%,,,,ZnO,,ZnOZnO,ZnO,,,,ZnO2ZnO212XRD3016mol/L2h,200XRD,ZnO(PDF3621451),2=311934143613471556176219ZnO(100)(002)(101)(102)(110)(103),,ZnOXRD,ZnO,,XRDZnO3X21211[12](101),1,,ZnO,,016mol/LZnO,ZnO,,,,,,,,19371ZnOZn2+/(molL-1)/nm/h/nm//nm0.411.6211.620018.60.618.6315.130020.70.816.9516.040019.91.013.6--50022.62.2.2ZnO1,,ZnOZnOZn(OH)2,ZnOZnO,Zn(OH)2,ZnO,,ZnO,ZnO212131,,,,Zn(OH)2ZnO,,,ZnO213SEM4CNTsZnO,,ZnO,ZnO;4cZnOCNTs,ZnOCNTs,,ZnO,40nm4bZnO,,,4[(a)CNTs;(b)CNTs/ZnO;(c)CNTs/ZnO()],3/,ZnO,:(1),014110mol/L,,,40nm,,(2),,ZnO,5hXRD,,ZnO(3),,ZnO,,ZnO,2002h,ZnO[1],,.Pt[J].,2004,20(05):5312535.[2],,.[J].(),2006,40(04):6762678.[3]JipengCheng,XiaobinZhang,YingYe.Synthesisofnickelnanoparticlesandcarbonencapsulatednickelnanoparticlessup2portedoncarbonnanotubes[J].JournalofSolidStateChemis2try,2006,179(1):91295.[4],,./[J].,2005,32(2):34237.[5],,,.[J].,2006,27(06):100321006.[6],,.MnO2[J].,2005,23(05):6012604.[7]JingSun,MikioIwasa,LianGao,QinghongZhang.Single2walledcarbonnanotubescoatedwithtitaniananoparticles[J].Carbon,2004,42(4):8952899.[8],,,./[J].,2005,21(10):160521608.[9],,,.ZnO2CNTs[J].,2006,22(10):117521180.[10],.ZnO[J].,2005,133(12):18221.[11],,.[J].,2006,21(01):65269.[12],,.[M].,,2001,8.:2008212213:200920221229