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The Synthesis and Luminescence Properties of Organic-inorganic Hybrid Eu(BA)3-MCM-41
Author(s): ZHU Cui-mei, WEI Chang-ping, PENG Chun-jia, XU Jie, SUN Xiao-fei
Pages: 935-
939
Year: 2007
Issue:
6
Journal: CHINESE JOURNAL OF LUMINESCENCE
Keyword: 介孔材料; MCM-41; Eu(BA)3; 有机-无机杂化; 发光;
Abstract: 将稀土有机配合物Eu(BA)3组装进介孔MCM-41中,得到有机-无机杂化介孔材料Eu(BA)3-MCM-41.采用XRD、IR、激发、发射光谱等测试方法对其结构和性能进行了分析.结果表明,组装体保持了有序的介孔骨架结构,由组装体IR谱图中波数3 451 cm-1吸收峰的消失及970cm-1吸收峰强度的降低可知,介孔中Eu(BA)3的引入使得配合物自身含有的结晶水、MCM-41中的吸附水和羟基数目减少,由于Eu(BA)3与-OH在介孔孔道中成键使羟基减少,降低了Eu3+的发光猝灭效应,提高了Eu3+的发光效率.组装体中主客体之间存在较强的相互作用,MCM-41的存在使Eu(BA)3对激发光有更强吸收,且使Eu(BA)3-MCM-41的发光强度较Eu(BA)3有显著的提高.
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