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Vol. 8 No. 1 (2017)
Vol 8, Núm. 1 (2017): Enero- Junio

Artículos de investigación / Research papers

Synthesis of hematite α-Fe2O3 nano powders by the controlled precipitation method / Síntesis de nano polvos de hematita α-Fe2O3 por el método de precipitación

https://doi.org/10.19053/01217488.v8.n1.2017.4494

Published 2017-05-31

  • JIMMY ALEXANDER MORALES MORALES

JIMMY ALEXANDER MORALES MORALES
UNIVERSIDAD SANTIAGO DE CALI

Abstract

Increased attention has been paid to the synthesis of hematite nanoparticles recently due to its properties and application in various fields of modern technology. The aqueous route has been found to be simpler and more versatile than the non-aqueous routes. In this study nanopowder of a-Fe2O3 (hematite) were synthesized by controlled precipitation method in three stages: precipitation of precursors, washing and calcination. The precipitation was controlled with ferric chloride as precursor, and sodium hydroxide as precipitant, in constant agitation and pH 6. It tested different reaction times: 1 and 2 days, and after 2 day of reaction it was concluded that it is possible to obtain hematite. The products obtained from the reaction were washed by centrifugation, dried at 80 ◦C, and were calcined at temperature of 425 ◦C, for four hours. To characterize the product obtained in the synthesis, it has been used FT-IR, SEM and RAMAN techniques. Samples with two days of reaction, washed and calcination at 425 ◦C are associated a mixture of hematite and magnetite and maghemite, with nearly morphology from plate-like shaped sphere and aggregates are formed by hemispherical primary particles whose size, apparently, is on the order of nanometers.

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References

  1. L. Huo, W. Li, L. Lu, H. Cui, S. Xi, J. Wang, B. Zhao, Y. Shen, and Z. Lu,. Preparation, structure, and properties of threedimensional ordered α-Fe2O3 nanoparticulate film. Chem. Mater. Vol. 12, No. 3, pp. 790, 2000. DOI: https://doi.org/10.1021/cm990690+
  2. R.H. Kodama, S.A. Makholoufand, and A.E. Berkowitz. Finite size effects in antiferromagnetic NiO nanoparticles. Phys. Rev. Lett. Vol. 79, No. 7, pp. 1393-1396, 1997 DOI: https://doi.org/10.1103/PhysRevLett.79.1393
  3. W.T. Dong, and C.S. Zhu. Use of ethylene oxide in the sol–gel synthesis of α-Fe2O3 nanoparticles from Fe(III) salts. J. Mater. Chem. Vol.12, No.(6), pp.1676, 2002 DOI: https://doi.org/10.1039/b200773h
  4. A. Prakash, A.V. McCormick, and M.R. Zachariah. Aero-Sol−Gel synthesis of nanoporous iron-oxide particles: A potential oxidizer for nanoenergetic materials. Chem. Mater. Vol. 16, No. 8, pp. 1466-1471, 2004 DOI: https://doi.org/10.1021/cm034740t
  5. A.K. Gupta, and M. Gupta. Synthesis and surface engineering of iron oxide nanoparticles for biomedical applications. Biomaterials Vol. 26, No. 18, pp. 3995-4021, 2005. DOI: https://doi.org/10.1016/j.biomaterials.2004.10.012
  6. A. Figuerola, R.D. Corato, L. Manna, and T. Pellegrino. From iron oxide nanoparticles towards advanced iron-based inorganic materials designed for biomedical applications. Pharmacological Research Vol. 62, No. 2, pp. 126-143, 2010 DOI: https://doi.org/10.1016/j.phrs.2009.12.012
  7. M.J. Espı´n, A.V. Delgado, J.E. Martin. Effects of electric fields and volume fraction on the rheology of hematite/silicone oil suspensions. Rheol Acta. Vol. 44, pp. 71–79, 2004 DOI: https://doi.org/10.1007/s00397-004-0375-6
  8. S. Pandey, S. Misha. Sol–gel derived organic–inorganic hybrid materials: synthesis, characterizations and applications. J. Sol-Gel Sci. Technol. 59, 73–94, 2011 DOI: https://doi.org/10.1007/s10971-011-2465-0
  9. H. Karami. Synthesis and Characterization of Iron Oxide Nanoparticles by Solid State Chemical Reaction Method. J. Cluster Sci. 21, 11–20, 2010 DOI: https://doi.org/10.1007/s10876-009-0278-x
  10. J. Rockenberger, E.C. Scher, A.P. Alivisatos, A New Nonhydrolytic Single-Precursor Approach to Surfactant-Capped Nanocrystals of Transition Metal Oxides, J. Am. Chem. Soc. 121 11595, 1999 DOI: https://doi.org/10.1021/ja993280v
  11. R. Perry, D. Green, J. Maloney, Manual del Ingeniero Químico, 7ma edición, Editorial McGraw Hill, 1, Madrid, España, pp. 18, 171, 197, 2001.
  12. U. Schwertmann and R. Cornell, Iron Oxides in the Laboratory - Preparation and Characterization, 2da Edition, Editorial John Wiley y Sons, Ltd., Weinheim, Germany, pp. 60-65, 122-128, 2000.
  13. M. Farahmandjou and F. Soflaee, Synthesis and Characterization of α-Fe2O3 Nanoparticles by Simple Co-Precipitation Method, Phys. Chem. Res., Vol. 3, No. 3, 191-196, 2015
  14. B. Zhao, Y. Wang, H. Guo, J. Wang, Y. He, Z. Jiao, M. Wu, Iron oxide(III) nanoparticles fabricated by electron beam irradiation method. Materials Science Poland Vol. 25, No. 4, pp. 1143-1148, 2007.
  15. T. Kim Il, G. A. Nunnery, K. Jacob, J. Schwartz, X. Liu, and R. Tannenbaum,. Synthesis, characterization, and alignment of magnetic carbon nanotubes tethered with maghemite nanoparticles. J. Phys. Chem. C Vol.114, No.15, pp. 6944–6951, 2010 DOI: https://doi.org/10.1021/jp9118925
  16. A. M. Jubb and H. C. Allen, Vibrational spectroscopic characterization of hematite, maghemite, and magnetite thin films produced by vapor deposition, ACS Applied Materials and Interfaces, Vol. 2, No. 10, pp. 2804–2812, 2010 DOI: https://doi.org/10.1021/am1004943
  17. N. Buzgar, A. I. Apopei, A. Buzatu, Romanian Database of Raman Spectroscopy (online), available at http://rdrs.uaic.ro/contact.html.
  18. D.L.A. de Faria, S. Venancio Silva, M.T. de, Oliveira, Raman microscopy of some iron oxides and oxyhydroxides, J. Raman Spectrosc. 28 873–878, 1997 DOI: https://doi.org/10.1002/(SICI)1097-4555(199711)28:11<873::AID-JRS177>3.0.CO;2-B
  19. X. Su, C. Yu, C. Qiang, Synthesis of Fe2O3 nanobelts and nanoflakes by thermal oxidation and study to their magnetic properties, Appl. Surf. Sci. 257, 9014–9018, 2011. DOI: https://doi.org/10.1016/j.apsusc.2011.05.091

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