Mössbauer study of pH dependence of iron-intercalation in montmorillonite

E. Kuzmann, V. K. Garg, H. Singh, A. C. de Oliveira, S. S. Pati, Z. Homonnay, M. Rudolf, M. Molnár, E. M. Kovács, E. Baranyai, S. Kubuki, N. Nagy, J. Kónya

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4 Citations (Scopus)

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 d001 with pH.

Original languageEnglish
Article number106
JournalHyperfine Interactions
Volume237
Issue number1
DOIs
Publication statusPublished - Dec 1 2016

Keywords

  • Fe Mössbauer spectroscopy
  • Ca-montmorillonite
  • Interlayer Fe
  • pH dependence

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry

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    Kuzmann, E., Garg, V. K., Singh, H., de Oliveira, A. C., Pati, S. S., Homonnay, Z., Rudolf, M., Molnár, M., Kovács, E. M., Baranyai, E., Kubuki, S., Nagy, N., & Kónya, J. (2016). Mössbauer study of pH dependence of iron-intercalation in montmorillonite. Hyperfine Interactions, 237(1), [106]. https://doi.org/10.1007/s10751-016-1314-5