NUKLEONIKA 2013, 58(1):63-66

 


MOSSBAUER SPECTROSCOPY STUDY OF 60P2O5-40Fe2O3 GLASS



Paweł Stoch1,2, Małgorzata Ciecińska1, Piotr Zachariasz2, Jan Suwalski2,
Ludwik Górski2, Tadeusz Wójcik2

1 Isotope Laboratory, Faculty of Biology, University of Warsaw,
1 Miecznikowa Str., 02-096 Warsaw, Poland
2 Department of Analytical Chemistry, Institute of Nuclear Chemistry and Technology,
16 Dorodna Str., 03-195 Warsaw, Poland

A 57Fe Mössbauer spectroscopy study is presented. The main goal of the research was to investigate the structural information of the glass-like the coordination numbers and redox ratio of the iron. Most of the iron, about 80%, is present in the glass as Fe3+, which is composed of tetrahedral (57%) and octahedral (23%) coordinated iron. The rest of the iron, about 20%, is in the oxidation state Fe2+. This iron could be mostly present as VIFe2+, but five-fold coordinated iron is also possible. Finally, the structural model of the synthesized 60P2O5-40Fe2O3 glass was proposed.

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