Colloidosome-based synthesis of a multifunctional nanostructure of silver and hollow iron oxide nanoparticles

Yue Pan, Jinhao Gao, Bei Zhang, Xixiang Zhang, Bing Xu

Research output: Contribution to journalArticlepeer-review

60 Scopus citations

Abstract

Nanoparticles that self-assemble on a liquid-liquid interface serve as the building block for making heterodimeric nanostructures. Specifically, hollow iron oxide nanoparticles within hexane form colloidosomes in the aqueous solution of silver nitrate, and iron oxide exposed to the aqueous phase catalyzes the reduction of silver ions to afford a heterodimer of silver and hollow iron oxide nanoparticles. Transmission electron microscopy, selected area electron diffraction, energy-dispersive X-ray spectrometry, X-ray diffraction, UV-vis spectroscopy, and SQUID were used to characterize the heterodimers. Interestingly, the formation of silver nanoparticles helps the removal of spinglass layer on the hollow iron oxide nanoparticles. This work demonstrates a powerful yet convenient strategy for producing sophisticated, multifunctional nanostructures. © 2010 American Chemical Society.
Original languageEnglish (US)
Pages (from-to)4184-4187
Number of pages4
JournalLangmuir
Volume26
Issue number6
DOIs
StatePublished - Mar 16 2010

ASJC Scopus subject areas

  • Spectroscopy
  • Materials Science(all)
  • Surfaces and Interfaces
  • Electrochemistry
  • Condensed Matter Physics

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