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.

引用

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页码：1470 / 1474

页数：4

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