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A Multifunctional Dual-Luminescent [email protected] Framework [email protected] Composite as Chemical Probe and Temperature Sensor

Authors
  • Salomon, William1
  • Dolbecq, Anne1
  • Roch-Marchal, Catherine1
  • Paille, Grégoire1, 2
  • Dessapt, Rémi3
  • Mialane, Pierre1
  • Serier-Brault, Hélène3
  • 1 Institut Lavoisier de Versailles, UMR CNRS 8180, Université Paris-Saclay, Université de Versailles Saint-Quentin, Versailles , (France)
  • 2 Laboratoire de Chimie des Processus Biologiques, UMR CNRS 8229, Collège de France, Université Pierre et Marie Curie, PSL Research University, Paris , (France)
  • 3 Institut des Matériaux Jean Rouxel, CNRS, Université de Nantes, Nantes , (France)
Type
Published Article
Journal
Frontiers in Chemistry
Publisher
Frontiers Media S.A.
Publication Date
Sep 24, 2018
Volume
6
Identifiers
DOI: 10.3389/fchem.2018.00425
Source
Frontiers
Keywords
Disciplines
  • Chemistry
  • Original Research
License
Green

Abstract

The luminescent [EuW10O36]9− polyoxometalate has been introduced into the cavities of the highly porous zirconium luminescent metal-organic framework UiO-67 via a direct synthesis approach, affording the [email protected] hybrid. Using a combination of techniques (TGA, BET, elemental analysis, EDX mapping,…) this new material has been fully characterized, evidencing that it contains only 0.25% in europium and that the polyoxometalate units are located inside the octahedral cavities and not at the surface of the UiO-67 crystallites. Despite the low amount of europium, it is shown that [email protected] acts as a solid-state luminescent sensor for the detection of amino-acids, the growth of the emission intensity globally following the growth of the amino-acid pKa. In addition, [email protected] acts as a sensor for the detection of metallic cations, with a high sensitivity for Fe3+. Noticeably, the recyclability of the reported material has been established. Finally, it is shown that the dual-luminescent [email protected] material behave as a self-calibrated-ratiometric thermometer in the physiological range.

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