Incorporation of Eu(III) into Calcite under Recrystallization conditions.

ABSTRACT: The interaction of calcite with trivalent europium under recrystallization conditions was studied on the molecular level using site-selective time-resolved laser fluorescence spectroscopy (TRLFS). We conducted batch studies with a reaction time from seven days up to three years with three calcite powders, which differed in their specific surface area, recrystallization rates and impurities content. With increase of the recrystallization rate incorporation of Eu(3+) occurs faster and its speciation comes to be dominated by one species with its excitation maximum at 578.8 nm, so far not identified during previous investigations of this process under growth and phase transformation conditions. A long lifetime of 3750 μs demonstrates complete loss of hydration, consequently Eu must have been i

SUBMITTER: Hellebrandt SE 

PROVIDER: S-EPMC5020613 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature