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

Hasanzadeh J., AZIZIAN-KALANDARAGH Y., Khodayari A.

JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS, vol.14, pp.473-477, 2012 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 14
  • Publication Date: 2012
  • Journal Name: JOURNAL OF OPTOELECTRONICS AND ADVANCED MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.473-477
  • Keywords: SEM, alpha-Fe2O3 nanoparticles, XRD, FT-IR, NANOPARTICLES, CHEMISTRY
  • Gazi University Affiliated: No

Abstract

This study involves the preparation of alpha-Fe2O3(hematite) nanoparticles via simple and facile ultrasound-assisted method from aqueous solution of FeSO4 center dot 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 alpha-Fe2O3 nanostructures have been formed after thermal annealing at 450 degrees 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.