A water-stable EuIII-based MOF as a dual-emission luminescent sensor for discriminative detection of nitroaromatic pollutants

被引：103

作者：

Zhang, Xue-Jing ^{[1
]}

Su, Fang-Zhe ^{[1
]}

Chen, Di-Ming ^{[1
]}

Peng, Yu ^{[1
]}

Guo, Wan-Ying ^{[1
]}

Liu, Chun-Sen ^{[1
]}

Du, Miao ^{[1
]}

机构：

[1] Zhengzhou Univ Light Ind, Henan Prov Key Lab Surface & Interface Sci, Zhengzhou 450002, Henan, Peoples R China

来源：

DALTON TRANSACTIONS | 2019年 / 48卷 / 05期

基金：

中国国家自然科学基金;

关键词：

METAL-ORGANIC FRAMEWORKS; HIGHLY SELECTIVE DETECTION; COORDINATION POLYMERS; TUNABLE LUMINESCENCE; TRACE DETECTION; ENERGY-TRANSFER; ACID; FE3+; CONSTRUCTION; EXPLOSIVES;

D O I：

10.1039/c8dt04397c

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A water-stable EuIII-based metal-organic framework (MOF) with dual-emission luminescence behavior, namely {[Eu-4(INO)(5)(mu(3)-OH)(2)Cl-4(H2O)]center dot(NO3)center dot(H2O)(5)}(n) (Eu-MOF; HINO = isonicotinic acid N-oxide), was successfully constructed by the solvothermal reaction of Eu3+ ions with the organic ligand HINO. The cationic 3D framework contains microporous channels with accessible Lewis-base sites and NO3- ions as balanced anions, which all contribute to the selective detection of multifarious analytes. This MOF shows ratiometric detection of acetone, Cr2O72- ions, and nitroaromatic compounds (NACs). In particular, it shows great recognition of four NACs in water, representing the first Ln(III)-MOF which can display distinguishing fluorescence phenomena on NACs rather than relying on the quenching effect. Furthermore, this is also the first example of a MOF-sensor for detecting these explosives discriminatively by ratiometric methods. Additionally, the mechanisms for luminescent responses towards different analytes have been discussed in detail.

引用

页码：1843 / 1849

页数：7

共 81 条

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