Photoluminescence Properties of Indium-Exchanged ZSM‑5 Zeolite

Optical properties (optical absorption and photoluminescence) of indium-exchanged ZSM-5 zeolite have been characterized. It has been found for the first time that reduced In-ZSM-5, containing low-valence In+ exchanged cations, exhibits efficient ultraviolet and visible-light photoluminescence. The p...

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Bibliographic Details
Published inJournal of physical chemistry. C Vol. 119; no. 31; pp. 17612 - 17618
Main Authors Serykh, Alexander I, Rozhdestvenskaya, Nadezhda N
Format Journal Article
LanguageEnglish
Published American Chemical Society 06.08.2015
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Summary:Optical properties (optical absorption and photoluminescence) of indium-exchanged ZSM-5 zeolite have been characterized. It has been found for the first time that reduced In-ZSM-5, containing low-valence In+ exchanged cations, exhibits efficient ultraviolet and visible-light photoluminescence. The photoluminescence can be induced by the electronic excitation transitions A, B, and C similar to those either in indium halides or in indium-doped alkali halides. The ultraviolet photoluminescence is associated with isolated In+ cations, while the visible-light photoluminescence is most probably due to radiative relaxation of In+ oligomers or low-dimensional clusters.
ISSN:1932-7447
1932-7455
DOI:10.1021/acs.jpcc.5b01387