Exploring fluorescent covalent organic frameworks for selective sensing of Fe3+

被引：0
|
作者：
Lu-Liang Wang
Cheng-Xiong Yang
Xiu-Ping Yan
机构：
[1] Nankai University,College of Chemistry, Research Center for Analytical Sciences, Tianjin Key Laboratory of Molecular Recognition and Biosensing, State Key Laboratory of Medicinal Chemical Biology
[2] Jiangnan University,Institute of Analytical Food Safety, School of Food Science and Technology
[3] Collaborative Innovation Center of Chemical Science and Engineering,undefined
来源：
Science China Chemistry | 2018年 / 61卷
关键词：
fluorescence; covalent organic frameworks; iron ion; fluorescent probe;
D O I：
暂无
中图分类号：
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+, Mg2+, K+, Ca2+, Cu2+, Zn2+, Pb2+, Ag+, Cd2+ and Fe3+ on the fluorescence of these COFs. The results show that only Fe3+ significantly quenched the fluorescence of the studied COFs. The possibility of the four COFs for selective sensing of Fe3+ was demonstrated. The possible mechanism of the effect of Fe3+ on the fluorescence of the COFs was based on the absorption competition quenching.
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页码：1470 / 1474
页数：4
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