Lanthanides-clay nanocomposites: Synthesis, characterization and optical properties
- Universidad Tecnologica Metropolitana, Department of Chemistry, P.O. Box 9845, Santiago (Chile)
- Universidad de Chile, Faculty of Science, Department of Chemistry, P.O. Box 653, Santiago (Chile)
- University College Cork, Tyndall National Institute, Lee Maltings, Cork (Ireland)
Complexes of Europium(III) and Terbium(III) with 2,2-bipyridine and 1,10-phenanthroline were inserted into Na-bentonite by ion exchange reactions at room temperature. The products display interlaminar distances and stoichiometries in agreement with the ion exchange capacity and the interlayer space available in the clay. The optical properties of the intercalates, being qualitatively similar to those of the free complexes, are additionally improved with respect to exchange processes with the medium, especially in a moist environment. The protection again hydrolysis, together with the intensity of the optical transition {sup 5}D{sub 0}-{sup 5}F{sub 2} observed in the nanocomposite, makes these products promising for the development of novel optical materials.
- OSTI ID:
- 21199783
- Journal Information:
- Materials Research Bulletin, Journal Name: Materials Research Bulletin Journal Issue: 5 Vol. 44; ISSN MRBUAC; ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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