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Highly Sensitive and Selective Chemosensor for Cu2+ Based on a Schiff Base
被引:11
|作者:
Cao Ben-nan
[1
]
Hu Qin
[1
]
Huang Yan
[2
]
Jia Chun-man
[1
]
Zhang Qi
[1
,2
]
机构:
[1] Hainan Univ, Hainan Prov Key Lab Fine Chem, Key Study Ctr, Minist Educ Trop Resources Utilizat, Haikou 570228, Peoples R China
[2] Jiangsu Univ, Dept Chem & Chem Engn, Zhenjiang 212013, Jiangsu, Peoples R China
基金:
中国国家自然科学基金;
关键词:
Chemosensor;
Schiff base;
Copper ion;
Naked-eye detection;
Quench;
FLUORESCENT SENSORS;
ELECTRON-TRANSFER;
LIVING CELLS;
RHODAMINE;
COORDINATION;
DERIVATIVES;
COPPER(II);
DESIGN;
PROBE;
ZN2+;
D O I:
10.1007/s40242-013-2449-4
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
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 5.721x10(-7)mol/L, and the 1:1 binding mode of the sensor with Cu2+ was revealed by Job's plot.
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页码:419 / 423
页数:5
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