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Preparation of α-Fe2O3 nanostructures via simple ultrasound-assisted method

J. HASANZADEH1,* , Y. AZIZIAN-KALANDARAGH2, A. KHODAYARI3

Affiliation

  1. Department of Physics, Faculty of Science, Islamic Azad University, Takestan Branch, Takestan, Iran
  2. Department of Physics, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran
  3. Department of Chemistry, University of Mohaghegh Ardabili, P.O. Box 179, Ardabil, Iran

Abstract

This study involves the preparation of α-Fe2O3(hematite) nanoparticles via simple and facile ultrasound-assisted method from aqueous solution of FeSO4.7H2O and NaOH in the presence of 3-MPA as a capping agent. X-ray diffraction analysis exhibits that the as-prepared product are in the phase of FeO(OH) and excellently crystallized α-Fe2O3 nanostructures have been formed after thermal annealing at 450°C. Scanning electron microscope (SEM) images reveal that the product consisting of rod-like nanocrystallites of about 40nm width and 300nm length, which aggregated in the form of polydispersive clusters. The FT-IR absorption spectroscopy of the as-prepared nanostructures and annealed nanopowders were studied..

Keywords

SEM, α-Fe2O3nanoparticles, XRD, FT-IR.

Submitted at: April 9, 2012
Accepted at: June 6, 2012

Citation

J. HASANZADEH, Y. AZIZIAN-KALANDARAGH, A. KHODAYARI, Preparation of α-Fe2O3 nanostructures via simple ultrasound-assisted method, Journal of Optoelectronics and Advanced Materials Vol. 14, Iss. 5-6, pp. 473-477 (2012)