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
收藏
页码：16378 / 16384
页数：7
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