Surfactant assisted synthesis and multifunctional features of Fe3O4@ZnO@SiO2 core–shell nanostructure

  • N. Selvi
  • S. Sankar
  • K. Dinakaran


In this study, hybrid core–shell magnetic nanostructure comprising Fe3O4 core with multiple shells of zinc oxide and silica having well defined morphologies are produced by a simple synthetic approach based on an effective chemical precipitation technique. Semi-solid and hydrophilic poly ethylene glycol was used as the stabilizing agent to control the particle size of the magnetic nanostructures. 1-Hexadecyltrimethyl ammonium chloride was employed as the surfactant to achieve the core–shell nanostructure. The formation of the core–shell nanostructures were confirmed by X-ray diffraction, Fourier transform infra-red spectroscopy and high resolution transmission electron microscopy respectively. We also observed the pronounced ferromagnetic features of ZnO coated Fe3O4 core–shell nanostructure that substantiates the magnetization reversal mechanism of the spinel magnetite. The coating of dense SiO2 on Fe3O4@ZnO was found to shift the magnetic behaviour from ferromagnetic to super-paramagnetic even at room temperature. The optical features of the material are observed by UV–Vis Spectrometer and Photoluminescence spectrometer.


Fe3O4 Magnetite Poly Ethylene Glycol Tetra Ethyl Ortho Silicate Pure Fe3O4 
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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Condensed Matter Lab, Department of PhysicsAnna UniversityChennaiIndia
  2. 2.Department of ChemistryAnna UniversityChennaiIndia

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