A novel turn-on colorimetric and fluorescent sensor for Fe3+ and Al3+ with solvent-dependent binding properties and its sequential response to carbonate

被引：80
作者：
He, Liang [1 ]
Liu, Chang [1 ]
Xin, John H. [1 ]
机构：
[1] Hong Kong Polytech Univ, Inst Text & Clothing, Hong Kong, Hong Kong, Peoples R China
来源：
SENSORS AND ACTUATORS B-CHEMICAL | 2015年 / 213卷
基金：
中国国家自然科学基金;
关键词：
Rhodamine; Colorimetric sensor; Fluorescence; Fe3+; Al3+; Carbonate; DIHYDROGEN PHOSPHATE ANION; SELECTIVE DETECTION; SOIL SAMPLES; CHEMOSENSOR; IONS; RECOGNITION; COMPLEX; RECEPTORS; TOXICITY; NAPHTHOL;
D O I：
10.1016/j.snb.2015.02.060
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A novel bis-rhodamine derivative BRU was designed and synthesized in a simple way. In aqueous media, BRU could efficiently recognize Fe3+ and Al3+ among other metal ions with different color appearances through a turn-on colorimetric response. In the presence of Fe3+ or Al3+, BRU solution also displayed enhanced fluorescent emission. According to the detection limit, BRU had high recognition sensitivity towards Fe3+ and Al3+ based on either colorimetric absorbance or fluorescent emission. Interestingly, BRU bound to Fe3+ or Al3+ with a simple 1:1 mode in CH3OH and a 1:2 mode in CH3 OH/H2O, displaying solvent-dependent binding property. In addition, the in situ generated BRU-Fe3+ and BRU-Al3+ complex exhibited fluorescence turn-off and color disappearance towards carbonate among other anions. These provide a potential application in sequential detection of Fe3+, Al3+ and carbonate with naked-eyes. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：181 / 187
页数：7
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