Institute of Functional Interfaces

Far Infrared Spectroscopy of Interlayer Vibrations of Cu(II), Mg(II), Zn(II), and Al(III) Intercalated Muscovite

  • chair:

    Friedrich, F. / Gasharova, B. / Mathis, Y.-L. / Nüesch, R / Weidler, P.G (2006)

  • place: Applied Spectroscopy, 60 (2006), 7, 723-728

  • Date: 2006
  • Friedrich, F. / Gasharova, B. / Mathis, Y.-L. / Nüesch, R / Weidler, P.G (2006): „Far Infrared Spectroscopy of Interlayer Vibrations of Cu(II), Mg(II), Zn(II), and Al(III) Intercalated Muscovite“. In: Applied Spectroscopy, 60 (2006), 7, 723-728

Abstract

In this study the intercalation behavior of di- and trivalent cations like Cu(II), Mg(II), Zn(II), and Al(III) into the interlayers of muscovite was investigated by X-ray diffraction and far-infrared spectroscopy. The X-ray diffractometry shows that the original material is a muscovite 2M1. During the metal cation treatment, new peaks occur at about 1.1 and 2.2 nm, while the original peaks strongly decrease.

This gives evidence for the formation of a strongly modified mica structure. The occurrence of bands at low wavenumbers (93 cm−1 and 104 cm−1) in the far-infrared spectra show that the untreated material was partly dehydroxylated.

The strong decrease of the band at 93 cm−1 and the occurrence of a band at 110 cm−1 during the intercalation are strong hints about the rehydroxylation of the mineral. The strong increase of the band intensity at 88 cm−1 and the occurrence of a band at 119 cm−1 in the treated muscovites prove the formation of a new, strongly modified mica phase that has both the new cations and the potassium incorporated into the interlayer space.


 

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