Sonochemical deposition of magnetite on silver nanocrystals

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

doi:10.1016/j.ultsonch.2008.04.014

Sonochemical deposition of magnetite on silver nanocrystals

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

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

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 language	English
Pages (from-to)	132-135
Number of pages	4
Journal	Ultrasonics Sonochemistry
Volume	16
Issue number	1
DOIs	https://doi.org/10.1016/j.ultsonch.2008.04.014
State	Published - 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.

Keywords

Magnetite
Silver nanoparticles
Sonochemical deposition

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10.1016/j.ultsonch.2008.04.014

Cite this

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title = "Sonochemical deposition of magnetite on silver nanocrystals",

abstract = "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.",

keywords = "Magnetite, Silver nanoparticles, Sonochemical deposition",

author = "Nina Perkas and Galina Amirian and Claudio Rottman and {de la Vega}, Fernando and Aharon Gedanken",

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.",

year = "2009",

month = jan,

doi = "10.1016/j.ultsonch.2008.04.014",

language = "אנגלית",

volume = "16",

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journal = "Ultrasonics Sonochemistry",

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AU - Perkas, Nina

AU - Amirian, Galina

AU - Rottman, Claudio

AU - de la Vega, Fernando

AU - Gedanken, Aharon

N1 - 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.

PY - 2009/1

Y1 - 2009/1

N2 - 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.

AB - 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.

KW - Magnetite

KW - Silver nanoparticles

KW - Sonochemical deposition

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JF - Ultrasonics Sonochemistry

IS - 1

ER -

Sonochemical deposition of magnetite on silver nanocrystals

Abstract

Bibliographical note

Keywords

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