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Hyperfine Interactions

, Volume 58, Issue 1–4, pp 2373–2376 | Cite as

Magnetic properties of iron oxides produced by bacterial oxidation of Fe2+ under acid conditions

  • E. Murad
  • J. M. Bigham
  • L. H. Bowen
  • U. Schwertmann
Biology

Abstract

Iron oxides synthesized under acid conditions in a bioreactor using the bacteriumThiobacillus ferrooxidans or formed in nature under similar conditions resemble relatively “well”-crystallized ferrihydrites. Mössbauer spectra, however, show up significant differences between these and ferrihydrites, indicating sulfate to play a major role in determining the properties of the bacterial samples.

Keywords

Oxide Iron Sulfate Thin Film Magnetic Property 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. [1]
    K.S. Brady, J.M. Bigham, W.E. Jaynes and T.J. Logan, Clays Clay Miner, 34 (1986) 266.Google Scholar
  2. [2]
    E. Murad and J.H. Johnston, in:Mössbauer Spectroscopy Applied to Inorganic Chemistry, Vol. 2, ed. G.J. Long (Plenum Press, New York, 1987) p. 507.Google Scholar
  3. [3]
    E. Murad, L.H. Bowen, G.J. Long and T.G. Quin, Clay Miner, 23 (1988) 163.Google Scholar
  4. [4]
    E. Murad, J. Mag. Mag. Mater. 74 (1988) 153.CrossRefADSGoogle Scholar

Copyright information

© J.C. Baltzer A.G. Scientific Publishing Company 1990

Authors and Affiliations

  • E. Murad
    • 1
  • J. M. Bigham
    • 1
  • L. H. Bowen
    • 2
  • U. Schwertmann
    • 1
  1. 1.Lehrstuhl für BodenkundeTechnische Universität MünchenFreising-WeihenstephanFederal Republic of Germany
  2. 2.Department of ChemistryNorth Carolina State UniversityRaleighU.S.A.

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