Fluorescence enhancement of Tb3+-doped CaAl-LDH by cytosine
作者： Yufeng Chen , Jiwang Zhang , Xiaoqing Wang , Li Wang
DOI: 10.1016/J.JLUMIN.2018.07.035
关键词: Energy transfer 、 Transition (genetics) 、 Fluorescence 、 Intermolecular force 、 Doping 、 Cytosine 、 Ethanol 、 Infrared spectroscopy 、 Crystallography 、 Chemistry
摘要: Abstract Tb3+-doped CaAl LDH with fluorescent property has been prepared in ethanol/water media. After it is exposed to 0.01, 0.05, 0.10, and 0.25 mol L−1 cytosine solution, respectively, the amount of present CaAl-LDH/Cyt-n composites separately about 0.03, 0.05 mol per 1 mol CaAl-LDH by compositional analysis. XRD patterns reveal some reflections attributed composites. IR spectra show that bands appear Fluorescent suggest intensity emission due 5D4—7F5 transition Tb3+ gradually increases increasing CaAl-LDH. The mechanism fluorescence enhancement based on intermolecular energy transfer from Tb (III) proposed discussed.
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