一类新型高荧光性类水滑石(Al-HTLc)的合成与性能

Science in China. Series B, Chemistry Pub Date : 2008-03-20 DOI:10.1360/ZB2008-38-3-218

章文贡, 陈鸿

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摘要

采用共沉淀法, 合成、组装得到一类将铝离子(Al3+)量减少到一定值的镁铝型类水滑石, 并使分散于其镁铝水滑石板层上的铝离子与板层间溶于亲油性阴离子中的计量8-羟基喹啉(8-HQ)配位, 获得一类新型高荧光性类水滑石(Al-HTLc). 采用荧光光谱、红外光谱、紫外光谱、XRD、XPS和热分析等对其进行了表征. 研究结果表明, 该Al-HTLc在紫外光下可发出荧光强度高达4.9×10 5 (a.u.)的强烈蓝绿色荧光(487 nm), 荧光寿命为21.24 ns, 光量子产率为67%, 高于纯8-羟基喹啉铝(Alq 3 ), 且具有更高热稳定性, 有望作为一类高性能的新型荧光材料而获得应用.

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一类新型高荧光性类水滑石(Al-HTLc)的合成与性能

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Science in China. Series B, Chemistry

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