A time-resolved laser fluorescence spectroscopy (TRLFS) study of the interaction of trivalent actinides (Cm(III)) with calcite

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Publication Details

Output type: Journal article

Author list: Stumpf T., Fanghaenel T.

Publisher: Elsevier

Publication year: 2002

Volume number: 249

Issue number: 1

Start page: 119

End page: 122

Number of pages: 4

ISSN: 0021-9797

URL: http://api.elsevier.com/content/abstract/scopus_id:0036352960

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Open access status: closed

Abstract

Cm(III) interaction with calcite was investigated by time-resolved laser fluorescence spectroscopy (TRLFS) in the trace concentration range. Two different Cm(III)/calcite sorption species were found. The first Cm(III) sorption species consists of a curium ion bonded onto the calcite surface. The second Cm(III) sorption species has lost its complete hydration sphere and is incorporated into the calcite bulk structure. The Cm(III)/calcite complexes are characterized by their emission spectra (peak maxima at 607.5 and 618.0 nm) and their fluorescence emission lifetimes (314 ± 6 and 1302 ± 75 μs). © 2002 Elsevier Science (USA).

Keywords

Calcite, Curium, Solid solutions, Surface complexation, TRLFS

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