期刊
ANALYTICA CHIMICA ACTA
卷 1188, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.aca.2021.339191
关键词
Covalent organic frameworks; Lanthanide ion; Antenna effect; Antibiotics; High signal-to-noise; Renewable detection
资金
- Natural Science Foundation of Guangdong Province [2020A1515011066]
- Macao Young Scholars Program [AM201930]
- Basic and Applied Basic Research Project of Guangzhou [202102020145]
A new imine-linked COF with suitable coordination sites for Tb3+ was constructed for efficient chemical sensing, showing excellent ability to determine ciprofloxacin.
Lanthanide-functionalized porous organic materials have been the promising candidates in the chemical and biological sensing. Considering the superior thermal and solvent stability of covalent organic frameworks (COFs), the development of lanthanide ions-functionalized COFs based sensing platform is meaningful, while remains to be a challenge. In this work, a new imine-linked COF which provides suitable coordination sites for Tb3+ was constructed via the Schiff base reaction between P-phenylenediamine (Pda) and 2,6-Diformylpyridine (Dfp). Benefiting from its high signal-to-noise, the COF@Tb shows excellent ability to determinate ciprofloxacin (CIP) with a detection limit of 3.01 nM. The measurement can maintain good stability in the presence of potential interference or in actual sample. Being washed with ethanol after each measurement, COF@Tb can be recycled for five times. This work provides a novel alternative strategy for efficient construction of lanthanide-grafted COFs and may promote the development of porous organic materials based chemical sensing. (C) 2021 Elsevier B.V. All rights reserved.Y
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据