Sonochemical deposition of magnetite on silver nanocrystals

Nina Perkas, Galina Amirian, Claudio Rottman, Fernando de la Vega, Aharon Gedanken

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


Sonochemical irradiation of iron (II) acetate aqueous solution in presence of silver nanopowder resulted in deposition of magnetite nanoparticles on silver nanocrystals, and imparted them with magnetic properties. The Ag-Fe3O4 nanocomposite is well attracted to a permanent magnet, and demonstrates superparamagnetic behavior typical of nanomaterials in a magnetic field. The characterization of the product by X-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution transmission electron microscopy (HR TEM), energy-dispersive X-ray analysis (EDX), and X-ray photoelectron spectroscopy (XPS) reveal the presence of two phases of the silver and the magnetite, but no chemical interaction between them has been found. The strong anchoring of magnetite to the nanosilver surface was explained as a result of local melting of silver when the magnetite nucleus is thrown at the silver surface by high speed sonochemical microjets.

Original languageEnglish
Pages (from-to)132-135
Number of pages4
JournalUltrasonics Sonochemistry
Issue number1
StatePublished - Jan 2009

Bibliographical note

Funding Information:
The authors acknowledge the financial support of this project through the MAGNET NFM Program sponsored by the Chief Scientist of the Ministry of Industry, Trade, and Employment.


  • Magnetite
  • Silver nanoparticles
  • Sonochemical deposition


Dive into the research topics of 'Sonochemical deposition of magnetite on silver nanocrystals'. Together they form a unique fingerprint.

Cite this