Preparation of Nanosized Fe3O4 Powders by Solvothermal Method

Zhen Feng Cui; De Hui Sun

doi:10.4028/www.scientific.net/AMM.401-403.675

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 401-403Preparation of Nanosized Fe3O4 Powders by...

Preparation of Nanosized Fe₃O₄ Powders by Solvothermal Method

Abstract:

Nanosized Fe₃O₄ particles were prepared in glycol medium through a solvothermal method and the morphologies, structures, surface properties, and magnetism of the samples were characterized by SEM, XRD, FTIR absorption spectra and VSM. The experimental results show that the nanoparticle has a typical diameter of ca. 20 nm. The Fe₃O₄ nanoparticle diameters increased with increase of PEG content and PEG molecular weight under the case of other unchanged reaction conditions. The XRD pattern confirms that the Fe₃O₄ nanoparticles belong to cubic structure. The FTIR results indicate that the surface of the Fe₃O₄ nanoparticles are coated organic matter. Magnetic investigation reveals that the Fe₃O₄ nanoparticles have higher saturation magnetization and negligible coercivity at room temperature.

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Periodical:

Applied Mechanics and Materials (Volumes 401-403)

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675-678

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https://doi.org/10.4028/www.scientific.net/AMM.401-403.675

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Online since:

September 2013

Authors:

Zhen Feng Cui, De Hui Sun

Keywords:

Fe₃O₄, Nanoparticle, Solvothermal Method

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