Intercalation of Europium (III) species into bentonite

Journal Article · Thu Jun 15 00:00:00 EDT 2006 · Materials Research Bulletin

DOI:https://doi.org/10.1016/j.materresbull.2005.10.023· OSTI ID:20895231

Sanchez, A ^[1]; Echeverria, Y ^[2]; Torres, C.M. Sotomayor ^[3]; Gonzalez, G ^[2]; Benavente, E ^[1]

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1. Department of Chemistry, Universidad Tecnologica Metropolitana, P.O. Box 9845, Santiago (Chile)
2. Department of Chemistry, Faculty of Sciences, Universidad de Chile, P.O. Box 653, Santiago (Chile)
3. Tyndall National Institute, University College Cork, Lee Maltings, Cork (Ireland)

It is shown that the intercalation of [Europium(bipyridine){sub 2}]{sup 3+} into bentonite results in a new nanocomposite which preserves the emission properties of Europium (III). The exchange of sodium by europium in bentonite is correlated with the cation exchange capacity and molecular size. The intercalated complex exhibits luminescence where both the 2,2-bipyridine 'antenna' effect and the intensity maxima are comparable to the free complex suggesting that clay intercalated with rare earths may results in novel optical materials.

• OSTI ID: 20895231
• Journal Information: Materials Research Bulletin, Vol. 41, Issue 6; Other Information: DOI: 10.1016/j.materresbull.2005.10.023; PII: S0025-5408(05)00406-X; Copyright (c) 2005 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BENTONITE
COMPLEXES
EUROPIUM
ION EXCHANGE
LUMINESCENCE
SODIUM