期刊
JOURNAL OF LUMINESCENCE
卷 178, 期 -, 页码 331-339出版社
ELSEVIER
DOI: 10.1016/j.jlumin.2016.06.010
关键词
Lanthanides; Absorption; Fluorescence; LiCl-KCl molten eutectic
类别
资金
- National Research Foundation of Korea (NRF) grant - Korea government [2015M2A8A5021906, 2012M2A8A5025950]
- National Research Foundation of Korea [2012M2A8A5025950] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The absorption and fluorescence spectroscopic properties of all series of lanthanide elements (La, Ce, (...), Yb, Lu) were investigated in high temperature molten LiCl-KCl eutectic. Based on absorption spectra, the molar absorptivities for major absorption bands of lanthanides (Ln) were determined by analyzing the calibration curves at various concentrations. Moreover, the nephelauxetic parameters, beta, for lanthanides in molten LiCl-KCl salt were evaluated by comparing those for aqueous lanthanide ions. In addition, fluorescence spectra and lifetimes of lanthanide elements were obtained at various Ln(III) concentrations, and this is the first to systematically present fluorescence spectroscopic properties of the whole lanthanide elements in high temperature molten LiCl-KCl salt. Such absorption and fluorescence spectra can provide a fundamental basis for the understanding and development of various pyrochemical processes in molten LiCl-KCl eutectic. (C) 2016 Elsevier B.V. All rights reserved.
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