Highly Selective and Sensitive Detection of PO43- Ions in Aqueous Solution by a Luminescent Terbium Metal-Organic Framework

被引：35

作者：

Zhao, Shenglu ^{[1
]}

Xiao, Jiannan ^{[1
]}

Zheng, Tianxiang ^{[1
]}

Liu, Meiying ^{[1
]}

Wu, Haonan ^{[1
]}

Liu, Zhiliang ^{[1
]}

机构：

[1] Inner Mongolia Univ, Sch Chem & Chem Engn, Inner Mongolia Key Lab Chem & Phys Rare Earth Mat, Hohhot 010021, Peoples R China

来源：

ACS OMEGA | 2019年 / 4卷 / 15期

关键词：

WHITE-LIGHT EMISSION; LANTHANIDE COMPLEXES; COORDINATION POLYMERS; MOF; REDUCTION; SENSOR; FE3+; CO2; FABRICATION; ANTENNA;

D O I：

10.1021/acsomega.9b01911

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A luminescent terbium metal-organic framework [Tb-HPIA(-))(PIA(2-))(H2O2] (Tb-MOF), synthesized by a lanthanide metal ion (Tb 39 ) and nitric heterocyclic carboxylic acid ligands H(2)PIA (H(2)PIA = 5-(1H-pyrazol-3-yl)isophthalic-acid), was structurally characterized as a three-dimensional skeleton structure in which layered coordination frameworks are connected by hydrogen bonds. Based on the antenna effect, Tb-MOF can emit bright green fluorescence under 254 nm excitation, and the fluorescence emission presents excellent durability in aqueous solutions among a wide pH range. Moreover, the structure of Tb-MOF also possesses outstanding thermal stabilities. In some ways, PO43- and its derivatives are thought to be a kind of pollutant ion causing series environmental and health problems. The as-synthesized Tb-MOF exhibits prominent selectivity and remarkable sensitivity for detecting PO43- as an easy-to-use fluorescent probe with low detection limit, fast response, and wide detection range. Therefore, Tb-MOF has significant applications in the fields of human health and environmental monitoring.

引用

页码：16378 / 16384

页数：7

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