A Multifunctional Tb-MOF Detector for H2O2, Fe3+, Cr2O72–, and TPA Explosive Featuring Coexistence of Binuclear and Tetranuclear Clusters | Zendy

Hongmei Chai | Zendy; Gangqiang Zhang | Zendy; Chunxia Jiao | Zendy; Yixia Ren | Zendy; Loujun Gao | Zendy

Open Access

A Multifunctional Tb-MOF Detector for H₂O₂, Fe³⁺, Cr₂O₇^2–, and TPA Explosive Featuring Coexistence of Binuclear and Tetranuclear Clusters

Author(s) -

Hongmei Chai,

Gangqiang Zhang,

Chunxia Jiao,

Yixia Ren,

Loujun Gao

Publication year - 2020

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.0c04526

Subject(s) - terbium , microporous material , powder diffraction , solvothermal synthesis , thermogravimetry , metal organic framework , materials science , benzoic acid , fluorescence , crystallography , single crystal , inorganic chemistry , chemistry , nuclear chemistry , luminescence , organic chemistry , physics , optoelectronics , adsorption , quantum mechanics , composite material

A novel three-dimensional microporous terbium(III) metal-organic framework (Tb-MOF) named as [Tb 10 (DBA) 6 (OH) 4 (H 2 O) 5 ]·(H 3 O) 4 ( 1 ), was successfully obtained by a solvothermal method based on terbium nitrate and 5-di(2',4'-dicarboxylphenyl) benzoic acid (H 5 DBA). The Tb-MOF has been characterized by single crystal X-ray diffraction, elemental analysis, thermogravimetry, and fluorescence properties, and the purity was further confirmed by powder X-ray diffraction (PXRD) analysis. Structural analysis shows that there are two kinds of metal cluster species: binuclear and tetranuclear, which are linked by H 5 DBA ligands in two μ 7 high coordination fashions into a three-dimensional microporous framework. Fluorescence studies show that the Tb-MOF can detect H 2 O 2 , Fe 3+ , and Cr 2 O 7 2- with high sensitivity and selectivity and can also be used for electrochemical detection of exposed 2,4,6-trinitrophenylamine (TPA) in water. The highly selective and sensitive detection ability of the Tb-MOF might make it a potential multifunctional sensor in the future.

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