TRLFS characterization of Eu(III)-doped synthetic organo-hectorite

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Autoren

  • Nicolas Finck
  • Thorsten Stumpf
  • Clemens Walther
  • Dirk Bosbach

Externe Organisationen

  • Karlsruher Institut für Technologie (KIT)
  • Helmholtz Virtual Institute 'Advanced Solid-Aqueous RadioGeochemistry
Forschungs-netzwerk anzeigen

Details

OriginalspracheEnglisch
Seiten (von - bis)253-262
Seitenumfang10
FachzeitschriftJournal of Contaminant Hydrology
Jahrgang102
Ausgabenummer3-4
PublikationsstatusVeröffentlicht - 7 Sept. 2008
Extern publiziertJa

Abstract

Europium(III) was coprecipitated with the clay mineral hectorite, a magnesian smectite, following a multi-step synthesis procedure. Different Eu(III) species associated with the proceeding synthetic hectorite were characterized by selectively exciting the 5D0→7F0 transition at low temperature (T < 20 K). Fluorescence decay times indicated that Eu(III) ions may be incorporated in the octahedral layer of the brucite precursor as well as in the octahedral sheet of the clay mineral. The excitation spectra indicated that the substitution of the divalent Mg by the trivalent Eu induced local structural deformation. This investigation implements the molecular-level understanding of the f element structural incorporation into the octahedral layer of sheet silicates by coprecipitation with clay minerals from salt solutions at 100 °C.

ASJC Scopus Sachgebiete

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TRLFS characterization of Eu(III)-doped synthetic organo-hectorite. / Finck, Nicolas; Stumpf, Thorsten; Walther, Clemens et al.
in: Journal of Contaminant Hydrology, Jahrgang 102, Nr. 3-4, 07.09.2008, S. 253-262.

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review

Finck N, Stumpf T, Walther C, Bosbach D. TRLFS characterization of Eu(III)-doped synthetic organo-hectorite. Journal of Contaminant Hydrology. 2008 Sep 7;102(3-4):253-262. doi: 10.1016/j.jconhyd.2008.08.003
Finck, Nicolas ; Stumpf, Thorsten ; Walther, Clemens et al. / TRLFS characterization of Eu(III)-doped synthetic organo-hectorite. in: Journal of Contaminant Hydrology. 2008 ; Jahrgang 102, Nr. 3-4. S. 253-262.
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AU - Walther, Clemens

AU - Bosbach, Dirk

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