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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, Advance Article
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, Advance Article , DOI: 10.1039/D0DT03176C

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