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Effect of Non-ionic Igepal CO-520 in Sonochemical Synthesis of Monodisperse Fe3O4 Nanoparticles

Journal of Magnetics, Volume 15, Number 3, 30 Sep 2010, Pages 112-115
Vo Thanh Son (Center for NanoBioEngineering & Spintronics (WCU program), Department of Materials Science and Engineering, Chungnam National University), Le Van Phong (Center for NanoBioEngineering & Spintronics (WCU program), Department of Materials Science and Engineering, Chungnam National University), Md. Nazrul Islam (Center for NanoBioEngineering & Spintronics (WCU program), Department of Materials Science and Engineering, Chungnam National University), Tran Quang Hung (Center for NanoBioEngineering & Spintronics (WCU program), Department of Materials Science and Engineering, Chungnam National University), Sarah Kim (Nanomechanical System Research Center, Korea Institute of Machinery and Materials), Jun-Ho Jeong (Nanomechanical System Research Center, Korea Institute of Machinery and Materials), CheolGi Kim (Center for NanoBioEngineering & Spintronics (WCU program), Department of Materials Science and Engineering, Chungnam National University), Jong-Ryul Jeong * (Department of Materials Science and Engineering and Graduate School of Green Energy Technology, Chungnam National University)
Abstract

We have investigated a surfactant-assisted sonochemical approach to produce monodisperse Fe3O4 nanoparticles (NPs). The non-ionic surfactant Igepal CO-520 (Poly(oxyethylene)(5) nonylphenyl ether) has been used for the preparation of NPs and the effects on the NP size, size distribution, and magnetic properties have been studied. The Fe3O4 NPs were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and vibrating sample magnetometry (VSM). The results reveal that the NPs prepared by a Igepal CO- 520-assisted sonochemical method exhibit a narrow range of size distributions and a high monodispersity compared to the NPs from the conventional sonochemical method. The analysis of NPs prepared in the presence of the surfactant suggested that it could be used not only as a protector to prevent the oxidation of Fe (II), but also as a controller to vary the size of the NPs.

 

Keywords: sonochemistry; magnetic nanoparticles; magnetite; Igepal CO-520
DOI: 10.4283/JMAG.2010.15.3.112
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