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Ethylenediaminetetraacetic Acid Capped Superparamagnetic Iron Oxide (Fe3o4) Nanoparticles: A Novel Preparation Method and Characterization Publisher



Aghazadeh M1 ; Karimzadeh I2 ; Ganjali MR3, 4
Authors
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Authors Affiliations
  1. 1. Materials and Nuclear Research School, Nuclear Science and Technology Research Institute (NSTRI), P.O. Box 14395-834, Tehran, Iran
  2. 2. Department of Physics, Faculty of Science, Central Tehran Branch, Islamic Azad University, Tehran, Iran
  3. 3. Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran
  4. 4. Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

Source: Journal of Magnetism and Magnetic Materials Published:2017


Abstract

A novel and facile strategy is introduced for the preparation of ethylenediaminetetraacetic acid (EDTA) capped magnetite nanoparticles (MNPs). In this strategy, Fe3O4 nanoparticles were electrodeposited from a deposition bath containing 0.005 M Fe2+/Fe3+ nitrate and chlorides alts and 1 g/L EDTA. A simple deposition mode i.e. constant current and two-electrode set-up was used in the electro-synthesis procedure. The magnetite phase of the deposited nanoparticles was confirmed through XRD and FT-IR analyses. Morphological observations through FE-SEM and TEM confirmed the formation of spherical MNP particles with an average size of 10 nm. The EDTA layer on the surface of the electro-synthesized magnetite nanoparticles was proved based on FT-IR, DLS and TG data. Vibrating sample magnetometer (VSM) measurements confirmed the EDTA capped iron oxide nanoparticles to have a super-paramagnetic nature, since they exhibit a high saturation magnetization (Ms = 51.9 emu g−1), as well as, negligible remnant magnetization (Mr = 0.59 emu g−1) and coercivity (Hc = 0.85 Oe). Based on the obtained results, the proposed platform can be considered as a fast, simple and efficient method for the preparation of the EDTA capped magnetite nanoparticles. © 2017 Elsevier B.V.
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