Size-controlled synthesis and characterization of Fe3O4 nanoparticles by chemical coprecipitation method

Chin Hua Chia, Sarani Zakaria, R. Farahiyan, Liew Tze Khong, Kien L. Nguyen, Mustaffa Abdullah, Sahrim Ahmad

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

Magnetite (Fe3O4) nanoparticles have been synthesized using the chemical coprecipitation method. The Fe3O4 nanoparticles were likely formed via dissolution-recrystallization process. During the precipitation process, ferrihydrite and Fe(OH)2 particles formed aggregates and followed by the formation of spherical Fe3O4 particles. The synthesized Fe3O4 nanoparticles exhibited superparamagnetic behavior and in single crystal form. The synthesis temperature and the degree of agitation during the precipitation were found to be decisive in controlling the crystallite and particle size of the produced Fe3O4 nanoparticles. Lower temperature and higher degree of agitation were the favorable conditions for producing smaller particle. The magnetic properties (saturation magnetization and coercivity) of the Fe3O4 nanoparticles increased with the particle size.

Original languageEnglish
Pages (from-to)389-394
Number of pages6
JournalSains Malaysiana
Volume37
Issue number4
Publication statusPublished - Dec 2008

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Coprecipitation
Nanoparticles
Particle size
Magnetite nanoparticles
Saturation magnetization
Crystallite size
Coercive force
Magnetic properties
Dissolution
Crystallization
Single crystals
Temperature

Keywords

  • Chemical coprecipitation
  • Ferrite
  • Magnetite
  • Nanoparticles

ASJC Scopus subject areas

  • General

Cite this

Size-controlled synthesis and characterization of Fe3O4 nanoparticles by chemical coprecipitation method. / Chia, Chin Hua; Zakaria, Sarani; Farahiyan, R.; Khong, Liew Tze; Nguyen, Kien L.; Abdullah, Mustaffa; Ahmad, Sahrim.

In: Sains Malaysiana, Vol. 37, No. 4, 12.2008, p. 389-394.

Research output: Contribution to journalArticle

Chia, Chin Hua ; Zakaria, Sarani ; Farahiyan, R. ; Khong, Liew Tze ; Nguyen, Kien L. ; Abdullah, Mustaffa ; Ahmad, Sahrim. / Size-controlled synthesis and characterization of Fe3O4 nanoparticles by chemical coprecipitation method. In: Sains Malaysiana. 2008 ; Vol. 37, No. 4. pp. 389-394.
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