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Insight into the Luminescence Behavior of Europium(III) β‐Diketonate Complexes Encapsulated in Zeolite L Crystals
Author(s) -
Wen Tingting,
Zhang Wenjun,
Hu Xuejun,
He Liang,
Li Huanrong
Publication year - 2013
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201300073
Subject(s) - europium , luminescence , chemistry , zeolite , thionine , inorganic chemistry , quantum yield , molecule , photochemistry , ion , fluorescence , organic chemistry , materials science , electrochemistry , optoelectronics , optics , physics , electrode , catalysis
The acidity of europium(III)‐exchanged zeolite L (Eu 3+ /ZL) and its influence on the luminescence performances of encapsulated europium(III) β‐diketonate complexes are reported. The results indicate the importance of understanding the acidity of Eu 3+ /ZL in the preparation of luminescent host–guest materials of zeolite L crystals and europium(III) β‐diketonate complexes. The acidity of Eu 3+ /ZL was determined roughly by using a dye (thionine) as the probe molecule. The luminescence performances of the host–guest materials, including excitation and emission spectra, lifetime of Eu 3+ ions, quantum yield, and energy transfer efficiency, have been investigated. The luminescence behavior of the host–guest materials can be tuned by changing the acidity inside the channels of the zeolite L crystals and can potentially be used as a sensor for detecting ammonia.