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

ABSTRACT: A novel three-dimensional microporous terbium(III) metal-organic framework (Tb-MOF) named as [Tb10 (DBA)6(OH)4(H2O)5]·(H3O)4 (1), was successfully obtained by a solvothermal method based on terbium nitrate and 5-di(2',4'-dicarboxylphenyl) benzoic acid (H5DBA). 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 H5DBA ligands in two ?7 high coordination fashions into a three-dimensional microporous framework. Fluorescence studies show that the Tb-MOF can detect H2O2, Fe3+, and Cr2O7 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.

SUBMITTER: Chai HM 

PROVIDER: S-EPMC7774076 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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A Multifunctional Tb-MOF Detector for H<sub>2</sub>O<sub>2</sub>, Fe<sup>3+</sup>, Cr<sub>2</sub>O<sub>7</sub> <sup>2-</sup>, and TPA Explosive Featuring Coexistence of Binuclear and Tetranuclear Clusters.

Chai Hong-Mei HM   Zhang Gang-Qiang GQ   Jiao Chun-Xia CX   Ren Yi-Xia YX   Gao Lou-Jun LJ  

ACS omega 20201214 51

A novel three-dimensional microporous terbium(III) metal-organic framework (Tb-MOF) named as [Tb<sub>10</sub> (DBA)<sub>6</sub>(OH)<sub>4</sub>(H<sub>2</sub>O)<sub>5</sub>]·(H<sub>3</sub>O)<sub>4</sub> (<b>1</b>), was successfully obtained by a solvothermal method based on terbium nitrate and 5-di(2',4'-dicarboxylphenyl) benzoic acid (H<sub>5</sub>DBA). The Tb-MOF has been characterized by single crystal X-ray diffraction, elemental analysis, thermogravimetry, and fluorescence properties, and th  ...[more]

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