Journal
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
Volume 520, Issue -, Pages 348-354Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfa.2017.01.073
Keywords
Alternating-current magnetic field; Fe3O4 nanoparticle clusters; Co-precipitation; Magnetism; Hyperthermia
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Funding
- National Key Basic Research Program of China [2011CB933503, 2013CB733804]
- National Natural Science Foundation of China for Key Project of International Cooperation [61420106012]
- National Natural Science Foundation of China [81473160]
- Collaborative Innovation Center of Suzhou Nano Science and Technology
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Field-assisted synthesis has been one of the common strategies of nanoparticles preparation with enhanced properties. However, most researches focused on exploring the effects of monofunctional static field on the structure and properties of synthetic nanomaterials, few researchers have applied fields with period variation as assistance. Combining medium alternating current magnetic field with most widely used method traditional chemical co-precipitation held potential in preparation high quality Fe3O4 nanoparticle. In this study, Fe3O4 nanoparticle clusters were prepared in alternating-current magnetic field (ACMF) by co-precipitation principle, structural and magnetic properties were also characterized. Results demonstrated that Fe3O4 nanoparticle clusters prepared by co-precipitation heated in ACMF indicated a better heat production under ACMF, comparing with Fe3O4 nanoparticle clusters with similar size and distribution prepared by classic co-precipitation. It might be due to the magnetic effects induced by ACMF that Fe3O4 nanoparticles tend to grow along the magnetization direction. This technology might hold promise in preparation high performance magnetic nanomaterial in the future. (C) 2017 Elsevier B.V. All rights reserved.
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