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Salomon, W., Dolbecq, A., Roch-Marchal, C., Paille, G., Dessapt, R., Mialane, P. & Serier-Brault, H. (2018) A Multifunctional Dual-Luminescent Polyoxometalate@Metal-Organic Framework EuW10@UiO-67 Composite as Chemical Probe and Temperature Sensor. Frontiers in Chemistry, 6 425. 
Added by: Richard Baschera (2018-10-04 15:04:05)   Last edited by: Richard Baschera (2018-10-04 15:26:55)
Type de référence: Article
DOI: 10.3389/fchem.2018.00425
Clé BibTeX: Salomon2018
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Catégories: MIOPS
Créateurs: Dessapt, Dolbecq, Mialane, Paille, Roch-Marchal, Salomon, Serier-Brault
Collection: Frontiers in Chemistry
Consultations : 5/502
Indice de consultation : 4%
Indice de popularité : 1%
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 EuW10@UiO-67 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 EuW10@UiO-67 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, EuW10@UiO-67 acts as a sensor for the detection of metallic cations, with a high sensitivity for Fe-3(+). Noticeably, the recyclability of the reported material has been established. Finally, it is shown that the dual-luminescent EuW10@UiO-67 material behave as a self-calibrated-ratiometric thermometer in the physiological range.
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