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Mössbauer study of pH dependence of iron-intercalation in montmorillonite

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Abstract

57Fe Mössbauer spectroscopy and XRD have successfully been applied to show the incorporation of Fe ion into the interlayer space of montmorillonite via treatment with FeCl 3 in acetone. The 78K 57Fe Mössbauer spectra of montmorillonite samples reflected magnetically split spectrum part indicating the intercalation of iron into the interlayer of montmorillonite via the treatment with FeCl 3+acetone and washed with water until the initial pH=2.3 increased to pH=4.14. It was found that the occurrence of intercalated iron in the form of oxide-oxihydroxide in montmorillonite increases with the pH. Intercalation was confirmed by the gradual increase in the basal spacing d 001 with pH.

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Acknowledgments

The financial supports from the CAPES (No A127/2013) and OTKA (No K115913 and K115784) grants are acknowledged.

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Authors and Affiliations

  1. Institute of Chemistry, Eötvös Loránd University, Budapest, Hungary

    E. Kuzmann, Z. Homonnay & M. Rudolf

  2. Institute of Physics, University of Brasília, Brasília, DF, Brazil

    E. Kuzmann, V. K. Garg, H. Singh, A. C. de Oliveira & S. S. Pati

  3. Imre Lajos Isotope Laboratory, Department of Colloid and Environmental Chemistry, University of Debrecen, Debrecen, Hungary

    Á. M. Molnár, E. M. Kovács, N. M. Nagy & J. Kónya

  4. Department of Inorganic and Analytical Chemistry, University of Debrecen, Debrecen, Hungary

    E. Baranyai

  5. Department of Chemistry, Tokyo Metropolitan University, Tokyo, 192-0397, Japan

    S. Kubuki

Authors
  1. E. Kuzmann
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  2. V. K. Garg
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  3. H. Singh
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  4. A. C. de Oliveira
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  5. S. S. Pati
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  6. Z. Homonnay
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  7. M. Rudolf
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  8. Á. M. Molnár
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  9. E. M. Kovács
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  10. E. Baranyai
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  11. S. Kubuki
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  12. N. M. Nagy
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  13. J. Kónya
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Corresponding author

Correspondence to E. Kuzmann.

Additional information

This article is part of the Topical Collection on Proceedings of the 2nd Mediterranean Conference on the Applications of the Mssbauer Effect (MECAME 2016), Cavtat, Croatia, 31 May-3 June 2016.

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Kuzmann, E., Garg, V.K., Singh, H. et al. Mössbauer study of pH dependence of iron-intercalation in montmorillonite. Hyperfine Interact 237, 106 (2016). https://doi.org/10.1007/s10751-016-1314-5

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  • DOI: https://doi.org/10.1007/s10751-016-1314-5

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