• journal_title：Clay Minerals
• Contributor：Yufeng Chen ; Songhua Zhou ; Fei Li ; Junchao Wei ; Yanfeng Dai ; Yiwang Chen
• Publisher：Mineralogical Society of Great Britain and Ireland
• Date：2011-
• Format：text/html
• Language：en
• Identifier：10.1180/claymin.2011.046.3.487
• journal_abbrev：Clay Minerals
• issn：0009-8558
• volume：46
• issue：3
• firstpage：487
• section：Articles

Fluorescence and phase transitions of a new Mg-Al-Eu ternary layered double hydroxide (LDH) and their dependence on thermal treatment were studied for the first time. Phase transitions occurred as the temperature increased from 400 to 1100°C. The process of phase transition is discussed in detail. The emissions of Eu³⁺ ions described by the ⁵D₀–⁷F_J transition (J = 1, 2, 3, 4), and especially for the ⁵D₀–⁷F_J transition (J = 1, 2) varied markedly with phase transformations from LDH, MgO, to mixtures of MgO and MgAl₂O₄. Moreover, strong emissions of Eu³⁺ ions are present in these new host materials. These results indicate that Mg-Al-Eu ternary LDH may be a potential candidate for materials applied in fluorescent devices.