摘要

In this work, we report successful preparation of superparamagnetic iron oxide (SPION) spherical nanoparticles with size of about 10 nm by co-precipitation method using FeSO4 center dot 7H(2)O and Fe-2(SO4)(3)center dot 5H(2)O as precursors and ethylenedia-minetetraacetic acid (EDTA) as surfactant agent. Characterization of the as prepared samples was carried out using X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) and Fourier Transform Infrared (FTIR) spectroscopy. Magnetic properties of the samples were evaluated using vibrating sample magnetometer (VSM). The results indicated formation of spherical superparamagnetic iron oxide nanoparticles with zero coercivity (Hc=0.0 Oe) and remanence (Mr=0) and a saturation magnetization of 60 emu/g at 300 K.

  • 出版日期2013-12