单分散Fe3O4@SiO2Au复合纳米颗粒的制备.pdf

·4· 材料导报B：研究篇 单分散Fe304@Si02／Au复合纳米颗粒的制备。 裴飞飞，尹剑波，赵晓鹏 (西北工业大学理学院智能材料实验室，西安710129) 摘要 制备了尺寸为30nIn，具有磁响应的单分散Fe。04@sioz／Au核壳纳米颗粒，并研究其光学性质。首先 构、表面电位和粒径分布进行表征，用紫外一可见分光光度计对光学性质进行了测试。 Fe3 关键词 04@si02／Au核壳结构单分散光学性质 中图分类号：0614．81 文献标识码：A of Fe304@Si02／Au PreparationMonodisperse CompositeNanoparticles PEI Feifei，YINJianbo，ZHAO Xiaopeng ofNaturaland 710129) (SmartMaterials Sciences，NorthwesternPolytechnicalUniversity，Xi’an Laboratory，SchoolApplied Abstract core／shell-structuredFe304@Sioz／Au withdiameterof30nnland Monodisperse nanoparticles good were andthentheir were Fe304nano- magneticresponseprepared opticalpropertiesinvestigated．Theoleate-capped were thermal then Fe3 particlesfirstlysynthesizedthrough decomposition，andmonodisperse04@Si02一NH2nanopar— ticleswereobtainedviathereversemicroemulsion were 04@SiQ／Au gottenby method．Finally，Fe3nanoparticles of the Au ontothesurfaceFe3 with of—NH2reduction．The decoratingparticles 04@Si02一NH2help morphology， surface werecharacterized mea- size，and of TEM，XRD，Zeta structure，particle potentialnanoparticles by potential surementsandthe weremeasuredUv-visible opticalproperties by spectra wordsFe3