Sol-gel synthesis of 8 nm magnetite (Fe 3O 4) nanoparticles and their magnetic properties

O. M. Lemine, Karim Omri, Bei Zhang, Lassaad El Mir, Mohammed Sajieddine, Ahmed Y. Alyamani, M. Bououdina

Research output: Contribution to journalArticlepeer-review

127 Scopus citations

Abstract

Magnetite (Fe 3O 4) nanoparticles were successfully synthesized by a sol-gel method. The obtained nanoparticles were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy dispersive analysis by X-ray (EDAX), transmission electron microscopy (TEM), superconducting quantum interference device (SQUID) and Mössbauer spectrometry. XRD and Mössbauer measurements indicate that the obtained nanoparticles are single phase. TEM analysis shows the presence of spherical nanoparticles with homogeneous size distribution of about 8 nm. Room temperature ferromagnetics behavior was confirmed by SQUID measurements. The mechanism of nanoparticles formation and the comparison with recent results are discussed. Finally, the synthesized nanoparticles present a potential candidate for hyperthermia application given their saturation magnetization. © 2012 Elsevier Ltd. All rights reserved.
Original languageEnglish (US)
Pages (from-to)793-799
Number of pages7
JournalSuperlattices and Microstructures
Volume52
Issue number4
DOIs
StatePublished - Oct 2012

ASJC Scopus subject areas

  • Materials Science(all)
  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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