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57Fe Mössbauer spectroscopic investigation of some coals of geographically different provenance and their fly ashes

  • J. Adetunji
  • J. M. Williams
  • A. Mehra

Abstract

Coal samples of geographically different provenance and their undifferentiated and fractionated fly ashes were studied with a Mössbauer spectrometer at room temperature. The Mössbauer results were complemented with elemental concentration measurements, using Inductively Coupled Plasma Atomic Emission Spectroscopy (ICP-AES). A high concentration of arsenic, a toxic environmental pollutant, was observed in a coal sample from one of the sources. Mössbauer analysis showed that it also has high pyrite, FeS2. Calculations of the ratios of Fe3+ to σFe in the coal fly ash aluminosilicate-glasses allowed us to assign structural positions of the ferric and ferrous ions in them.

Keywords

Inductively Couple Plasma Atomic Emission Spectroscopy Coal Sample Inductively Couple Plasma Atomic Emission Spectroscopy Mossbauer Spectrum Parent Coal 
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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Copyright information

© Springer Science+Business Media Dordrecht 2002

Authors and Affiliations

  • J. Adetunji
    • 1
  • J. M. Williams
    • 2
  • A. Mehra
    • 1
  1. 1.Centre for Environmental and Applied Science Research, School of Environmental and Applied SciencesUniversity of DerbyDerbyUK
  2. 2.Department of Physics and AstronomyUniversity of SheffieldSheffieldUK

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