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Synthesis and Characterization of Hydrophobic Fe3O4 Magnetic Nanoparticles with High Saturation Magnetization

  • Xiaoning SunEmail author
  • Song Wang
  • Yaping Wang
  • Kangning SunEmail author
Original Paper
  • 28 Downloads

Abstract

A simple one-step solvothermal method is proposed to prepare hydrophobic Fe3O4 nanoparticles (MNPs) using iron acetylacetonate (Fe(acac)3), oleylamine (OAm), and ethylene glycol (EG). X-ray powder diffraction, scanning electron microscope, infrared spectroscopy, transmission electron microscopy, X-ray photoelectron spectrometry, and vibrating sample magnetometer are used to characterize the structure, morphology, and properties of products. The testing results indicate that the as-synthesized products are spherical-like hydrophobic MNPs, superparamagnetic at room temperature, with a saturation magnetization up to 76.8 emu/g. The good hydrophobic property of MNPs is attributed to the coverage of oleylamine, without causing a remarkable loss of magnetic property. In addition, the influences of material ratio, aging time, oleic acid, and stearic acid used as additives are studied in our research.

Keywords

Hydrophobic Fe3O4 Magnetic properties Oleylamine 

Notes

Funding Information

The authors gratefully acknowledge the support of the National Natural Science Foundation of China (Grant No. 81171463, 30870610).

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Authors and Affiliations

  1. 1.Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials (Ministry of Education)Shandong UniversityJinanChina
  2. 2.Key Laboratory of Engineering CeramicsShandong UniversityJinanChina

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