Volume 11, Issue 8 p. 1627-1631
Communication

In Situ Observation of the Emission Characteristics of Zeolite-Hosted Silver Species During Heat Treatment

Gert De Cremer

Gert De Cremer

Department of Microbial and Molecular Systems, Katholieke Universiteit Leuven, Kasteelpark Arenberg 23, 3001 Heverlee (Belgium), Fax: (+32) 1632-1998

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Eduardo Coutiño-Gonzalez

Eduardo Coutiño-Gonzalez

Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Heverlee (Belgium), Fax: (+32) 1632-7990

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Maarten B. J. Roeffaers Dr.

Maarten B. J. Roeffaers Dr.

Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Heverlee (Belgium), Fax: (+32) 1632-7990

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Dirk E. De Vos Prof.

Dirk E. De Vos Prof.

Department of Microbial and Molecular Systems, Katholieke Universiteit Leuven, Kasteelpark Arenberg 23, 3001 Heverlee (Belgium), Fax: (+32) 1632-1998

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Johan Hofkens Prof.

Johan Hofkens Prof.

Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Heverlee (Belgium), Fax: (+32) 1632-7990

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Tom Vosch Dr.

Tom Vosch Dr.

Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, 3001 Heverlee (Belgium), Fax: (+32) 1632-7990

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Bert F. Sels Prof.

Bert F. Sels Prof.

Department of Microbial and Molecular Systems, Katholieke Universiteit Leuven, Kasteelpark Arenberg 23, 3001 Heverlee (Belgium), Fax: (+32) 1632-1998

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First published: 31 May 2010
Citations: 49

Graphical Abstract

The influence of heat treatment on the evolution of luminescence in silver exchanged zeolites is investigated under controlled atmosphere by using in situ fluorescence microscopy (see figure). The results indicate that the stable yellow Ag3n+ emitter is most efficiently created in a dry zeolite Y host. In zeolite A, the clusters interact with neighboring clusters or with water, decreasing the overall yellow luminescence.