Exploring fluorescent covalent organic frameworks for selective sensing of Fe3+

被引：0
|
作者：
Lu-Liang Wang [1 ]
Cheng-Xiong Yang [1 ]
Xiu-Ping Yan [1 ,2 ,3 ]
机构：
[1] College of Chemistry, Research Center for Analytical Sciences, Tianjin Key Laboratory of Molecular Recognition and Biosensing, State Key Laboratory of Medicinal Chemical Biology, Nankai University
[2] Institute of Analytical Food Safety, School of Food Science and Technology, Jiangnan University
[3] Collaborative Innovation Center of Chemical Science and Engineering
来源：
Science China(Chemistry) | 2018年 / 11期
基金：
中国国家自然科学基金;
关键词：
fluorescence; covalent organic frameworks; iron ion; fluorescent probe;
D O I：
暂无
中图分类号：
O657.3 [光化学分析法（光谱分析法）];
学科分类号：
摘要：
Covalent organic frameworks（COFs） have been widely applied in gas capture and separation, but the fluorescent property of COFs with large π-conjugated system tends to be underexplored. Here we report the fluorescent properties of several COFs including TaTa, DhaTab, TRITER-1 and TzDa and the effect of metal ions of Na+, Mg;, K+, Ca;, Cu;, Zn;, Pb;, Ag+, Cd;and Fe;on the fluorescence of these COFs. The results show that only Fe;significantly quenched the fluorescence of the studied COFs. The possibility of the four COFs for selective sensing of Fe;was demonstrated. The possible mechanism of the effect of Fe;on the fluorescence of the COFs was based on the absorption competition quenching.
引用
收藏
页码：1470 / 1474
页数：5
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