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Article
Preparation and Characterization of Ni-NTA Bearing PMAA Coated Superparamagnetic Magnetite Nanoparticles
Journal of Nanoscience and Nanotechnology (2008)
  • Bilsen Tural, Middle East Technical University
  • Necati Ozkan, Middle East Technical University
  • Murat Kaya, Middle East Technical University
  • Murvet Volkan, Middle East Technical University
Abstract

In order to produce magnetic microparticles (agglomerates), magnetite (Fe3O4) particles were synthesized using co-precipitation of FeSO4.7H2O and FeCl3.6H2O with the presence of poly(methacrylic acid) (PMAA) in aqueous solution.. Transmission electron microscopy (TEM), X-ray diffraction, and vibrating sample magnetometry (VSM) methods were used to characterize the PMAA coated superparamagnetic agglomerates. The influences of various processing parameters such as, the process temperature, PMAA content, and the addition of surfactant on the agglomerate size and size distribution of produced magnetic microparticles were investigated. The particle size and size distribution characteristics, (the volume weighted mean size (D[4,3], surface weighted mean size D[3,2], the geometric standard deviation, and span value) of the magnetic agglomerates were determined using the laser diffraction technique. The PMAA coated magnetic agglomerates with surface weighted mean sizes ranging from 1.5 to 3 microns were produced successfully.

Keywords
  • superparamagnetic,
  • particle size,
  • magnetite,
  • PMAA
Publication Date
Winter February, 2008
Citation Information
Bilsen Tural, Necati Ozkan, Murat Kaya and Murvet Volkan. "Preparation and Characterization of Ni-NTA Bearing PMAA Coated Superparamagnetic Magnetite Nanoparticles" Journal of Nanoscience and Nanotechnology Vol. 8 (2008)
Available at: http://works.bepress.com/necati_ozkan/25/