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：

070302 ; 081704 ;

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

页码：1470 / 1474

页数：5

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