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Scale-up synthesis of iron oxide nanoparticles by microwave-assisted thermal decomposition

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Laura Gonzalez-MoragasSi-Ming YuNerea Murillo-CremaesAnna LaromaineAnna Roig

Chemical Engineering JournalVolume 281, 1 December 2015, Pages 87–95

doi:10.1016/j.cej.2015.06.066

We report the multi-gram production of water-dispersible superparamagnetic iron oxide nanoparticles (SPIONs) by microwave-assisted reaction. A laboratory-scale reaction performed in a single-mode microwave unit (4.5 mL, producing 22 mg of Fe2O3) was scaled-up in a multi-mode equipment (up to 500 mL, corresponding to 2.61 g Fe2O3). The quality of the final material in terms of size, colloidal stability and magnetic properties, and the yield of the reaction (∼80%) were not compromised in the large-scale setup. Hence, these results reinforce the potential of microwave irradiation in industrial laboratories to synthesize high quality nanoparticles readily dispersible in water and in a short time.

See more posts on ICMAB related to: Methodologies for materials science and nanotechnology

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