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Issue 42, 2020
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The highly selective detecting of antibiotics and support of noble metal catalysts by a multifunctional Eu-MOF

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Abstract

Designing novel multifunctional rare-earth metal–organic frameworks (MOFs) has attracted intensive attention. In particular, employing such materials for sensing or catalytic reactions is still very challenging. Here, a new 3D porous Eu(III)-MOF, [Eu(cppa)(OH)]·xS (denoted as CTGU-19, S = solvent molecule, CTGU = China Three Gorges University), was synthesized by using 5-(4-carboxyphenyl)picolinic acid (H2cppa) as an organic ligand, and it shows a 3D (3,12)-connected topological net with the point symbol (420·628·818)(43)4, constructed from cubane-shaped tetranuclear europium building units. Interestingly, CTGU-19 can be used as a highly sensitive luminescent sensor to identify ornidazole (ODZ) and nitrofurantoin (NFT) at different excitation wavelengths. This result represents the first example of a lanthanide-metal–organic-framework (Eu-MOF) that can be employed as a discriminating fluorescent probe to recognize ODZ and NFT at different excitation wavelengths. Furthermore, after loading CTGU-19 with Ag and/or Au nanoparticles, the composites exhibit efficient catalytic performance for reducing 2-/3-/4-nitrophenols (2-/3-/4-NP), in which the unit mass reduction rate constants of Ag0.8Au0.2@CTGU-19 for 2-NP, 3-NP, and 4-NP reach 68.8, 53.80, and 52.34 s−1 g−1, respectively.

Graphical abstract: The highly selective detecting of antibiotics and support of noble metal catalysts by a multifunctional Eu-MOF

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Supplementary files

Article information


Submitted
10 Sep 2020
Accepted
01 Oct 2020
First published
02 Oct 2020

Dalton Trans., 2020,49, 14854-14862
Article type
Paper

The highly selective detecting of antibiotics and support of noble metal catalysts by a multifunctional Eu-MOF

B. Li, Y. Jiang, Y. Sun, Y. Wang, M. Han, Y. Wu, L. Ma and D. Li, Dalton Trans., 2020, 49, 14854
DOI: 10.1039/D0DT03176C

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