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Investigations on nano-iron oxides properties used for different industrial applications

E. MATEI1,* , A. M. PREDESCU1, A. PREDESCU1, E. VASILE2, C. PREDESCU1

Affiliation

  1. Politehnica University of Bucharest, Material Science and Engineering Faculty, 313 Splaiul Independentei, Bucharest, Romania
  2. METAV CD, 31 C.A. Rosetti Street, Bucharest, Romania

Abstract

The paper refers at synthesis preparation of some iron oxides useful in different industrial applications, with high capacities of adsorption for different metal ions from wastewaters. The synthesis method was partial reduction coprecipitation for Fe3O4 nanoparticles, followed by aeration of acidified magnetite nanoparticles for obtaining the γ-Fe2O3 nanoparticles, and also a mechanical alloying in order to obtain a nanoscale compound, copper ferrite (CuFe2O4). In order to validate the obtained compounds the investigation methods were scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectrometry (EDX) and X-ray diffraction (XRD) techniques. The stability of the nanomaterials, after 24 hours, was tested and measured with atomic absorption spectrometry (AAS)..

Keywords

Nanoparticle, Magnetite, Maghemite, Copper ferrite, EDX, SEM, XRD, TEM.

Citation

E. MATEI, A. M. PREDESCU, A. PREDESCU, E. VASILE, C. PREDESCU, Investigations on nano-iron oxides properties used for different industrial applications, Optoelectronics and Advanced Materials - Rapid Communications, 5, 3, March 2011, pp.296-301 (2011).

Submitted at: Feb. 23, 2011

Accepted at: March 16, 2011