中文摘要：

以无水碳酸钠作为碱和内核,通过其与稀土铽离子及有机配体乙酰水杨酸(aspirin)反应得到了新型的铽配合物复合碳酸钠核壳荧光材料。荧光显微图像表明该复合荧光材料具有明亮的绿色荧光,发射光谱显示有铽离子的特征发射峰。材料的激发光谱随着碳酸钠用量的改变而发生变化,说明铽配合物在碳酸钠表面的结构并非是单一的,会随着碳酸钠的用量而发生改变。复合材料的荧光强度随着碳酸钠用量的增多而呈现下降的趋势,平均荧光寿命随着碳酸钠用量的增多呈现上升的趋势。

英文摘要：

Na2 CO3 being used as the base and kernel, a new type of core-shell fluorescent material terbium complex was obtained by reaction of it with terbium and organic ligands acetylsalicylic acid ( aspirin) . The fluorescence micro images show that the composite materials emit bright green fluo-rescence which attribute to the emission of terbium ion. The excitation spectra shapes of the compos-ite materials change with the varying of amount of sodium carbonate, demonstrating that the struc-tures of terbium complexes on the surface of sodium carbonate are different. The fluorescence inten-sity of the composite material shows a downward trend with the increasing of the amount of sodium carbonate, and the average fluorescence lifetime shows an upward trend.