Solvothermal Synthesis of the Magnetite Micro-nano Particles(Fe3O4) with Different Morphologies

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (3): 552.

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Solvothermal Synthesis of the Magnetite Micro-nano Particles(Fe3O4) with Different Morphologies

GAO Qian^1,2, ZHANG Ji-Lin¹, HONG Guang-Yan^1*, NI Jia-Zuan¹

1. Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China;
2. School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China

Received:2010-10-11 Revised:2010-12-09 Online:2011-03-10 Published:2011-02-23
Contact: HONG Guang-Yan E-mail:gyhong@ciac.jl.cn
Supported by:
国家自然科学基金(批准号: 20871083)资助.

Abstract

Abstract: Abstract: The micro-nano magnetite particles (Fe3O4) with hydrophilic, good distribution, superparamagnetic and different shape were synthesized using a solvothermal method, where FeCl3 ? 6H2O as iron source, ethylene glycol or 1,2-propylene glycol as solvent, PEG as surfactant, and NaOH or KOH as the alkali source. Their morphologies, structures, and magnetism were characterized. The results showed that the products all were cubic phase of Fe3O4, with an adjustable particle size from 20nm to 600nm. We observed that the influences on the morphology of the alkali type and amount, reaction time, solvent and other conditions and found that the amount of alkali was the greatest impact. In this paper, the processes of formation of different morphologies Fe3O4 were discussed, and a reasonable mechanism is also briefly suggested. The resulting Fe3O4 particles with superparamagnetic property at room temperature can basically to meet the biomedical requirements.

Key words: Keywords: Magnetite, Solvothermal Method, Morphology, Magnetic Nanoparticles

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GAO Qian, ZHANG Ji-Lin, HONG Guang-Yan*, NI Jia-Zuan. Solvothermal Synthesis of the Magnetite Micro-nano Particles(Fe3O4) with Different Morphologies[J]. Chem. J. Chinese Universities, 2011, 32(3): 552.

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Solvothermal Synthesis of the Magnetite Micro-nano Particles(Fe3O4) with Different Morphologies

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