Influence of Calcination Temperature on Synthesis of Magnetite (Fe3O4) Nanoparticles by Sol-Gel Method

Apichaya Worawong; Tula Jutarosaga; Wandee Onreabroy

doi:10.4028/www.scientific.net/AMR.979.208

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 979Influence of Calcination Temperature on Synthesis...

Influence of Calcination Temperature on Synthesis of Magnetite (Fe₃O₄) Nanoparticles by Sol-Gel Method

Abstract:

Magnetite (Fe₃O₄) nanoparticles were successfully synthesized by the sol-gel method from ferric nitrate-EG (EG=ethylene glycol) gel. The precursors were calcined in argon under an atmospheric pressure at the temperatures varied from 400°C to 500°C. The synthesized magnetic nanoparticles were characterized by X-ray diffractrometer (XRD), field emission scanning electron microscope (FE-SEM) and vibrating sample magnetometer (VSM). The XRD patterns of powder calcined temperature at 400^๐C showed clearer Fe₃O₄ phase than those calcined at other temperatures. The particle size and morphology of magnetic nanoparticles were studied using FE-SEM. The FE-SEM images showed that the particle sizes varied from 30-108 nm. The particle sizes increased with the increase of calcination temperature. VSM measurements indicated that the Fe₃O₄ nanoparticles were soft ferrite with the maximum magnetization (M_m) and coercivity (H_c) of 35 emu/g and 17 Oe, respectively.

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Periodical:

Advanced Materials Research (Volume 979)

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208-211

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https://doi.org/10.4028/www.scientific.net/AMR.979.208

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Online since:

June 2014

Authors:

Apichaya Worawong*, Tula Jutarosaga, Wandee Onreabroy

Keywords:

Magnetite, Nanoparticle, Sol-Gel Method

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