Highly sensitive and selective chemosensor for Cu2+ based on a Schiff base
Highly sensitive and selective chemosensor for Cu2+ based on a Schiff base
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DOI：
10.1007/s40242-013-2449-4
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发表时间：
2013-05
影响因子：
3.1
通讯作者：
Bennan Cao;Qinghua Hu;Y. Huang;Chunman Jia;Qi Zhang
中科院分区：
文献类型：
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作者：
Bennan Cao;Qinghua Hu;Y. Huang;Chunman Jia;Qi Zhang
设计并合成了一种基于席夫碱的新型化学传感器。利用荧光光谱和紫外-可见光谱研究了该传感器对多种金属离子的传感行为。加入Cu 2+后，传感器的荧光被猝灭，颜色迅速由淡黄色变为棕色，而加入其他金属离子后，传感器的颜色没有发生变化，这有助于用肉眼检测Cu 2+。配体的荧光量子产率计算为0.52。该传感器对Cu ~（2+）的检测限为5.721×10 ~（-7）mol/L，结合模式为1：1。
A new chemosensor based on a Schiff base has been designed and synthesized. Its sensing behavior toward various metal ions was investigated by fluorescence and UV-Vis spectroscopic methods. The fluorescence of the sensor was quenched and the color rapidly changed from canary yellow to brown after the addition of Cu2+, while no changes occurred after the addition of other metal ions, which contributes to the detection of Cu2+with naked eyes. The fluorescence quantum yield of the ligand was calculated to be 0.52. The corresponding detection limit of Cu2+was 5.721×10−7mol/L, and the 1:1 binding mode of the sensor with Cu2+was revealed by Job’s plot.