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A Multifunctional Tb-MOF Detector for H(2)O(2), Fe(3+), Cr(2)O(7)(2–), and TPA Explosive Featuring Coexistence of Binuclear and Tetranuclear Clusters

[Image: see text] 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 T...

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Detalles Bibliográficos
Autores principales: Chai, Hong-mei, Zhang, Gang-qiang, Jiao, Chun-xia, Ren, Yi-xia, Gao, Lou-jun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2020
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7774076/
https://www.ncbi.nlm.nih.gov/pubmed/33403265
http://dx.doi.org/10.1021/acsomega.0c04526
Descripción
Sumario:[Image: see text] 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.