Highly selective and sensitive metal-organic framework fluorescent probe for Cu2+ through rational design of binding sites

被引：48

作者：

Zhao, Xudong ^{[1
]}

Liu, Dahuan ^{[1
]}

Huang, Hongliang ^{[1
]}

Zhong, Chongli ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites, Beijing 100029, Peoples R China

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2016年 / 224卷

关键词：

Copper ion; Metal-organic frameworks; Fluorescent probe; Binding site; Sensitive; STRUCTURED EU-MOF; SMALL MOLECULES; IONS; LUMINESCENCE; STABILITY; CARBOXYLATE; ADSORPTION; FE3+; CO2; COPPER(II);

D O I：

10.1016/j.micromeso.2015.11.042

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Eu3+ was successfully incorporated into two isostructural MOFs with different distributions of carboxyl groups, UiO-66-COOH and UiO-66-2COOH. Utilizing the specific binding site between two free carboxyl groups for efficiently capturing Cu2+, Eu3+@UiO-66-2COOH shows highly selective and sensitive luminescence quenching effect for Cu2+ in aqueous solution, while Eu3+@UiO-66-COOH with single free carboxyl group on the ligand possesses relatively poor performance. Meanwhile, such immobilization behavior of Cu2+ makes Eu3+ UiO-66-2COOH remarkably sensitive for Cu2+ at nano-molar concentration, superior to the majority of reported MOF sensors. (C) 2015 Elsevier Inc. All rights reserved.

引用

页码：149 / 154

页数：6

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