Multifunctionality of weak ferromagnetic porphyrin-based MOF: selective adsorption in liquid and gas phase

Eder Amayuelas (1, 2) , Paul Iacomi (3) , Arkaitz Fidalgo-Marijuan (4) , Begoña Bazán (4) , Miren Karmele Urtiaga (2) , Gotzone Barandika (2) , Luis Lezama (5) , Philip Llewellyn (6) , María Isabel Arriortua (7)

1 CEMHTI - Conditions Extrêmes et Matériaux : Haute Température et Irradiation
2 Université du pays basque
3 ICGM - Institut Charles Gerhardt Montpellier - Institut de Chimie Moléculaire et des Matériaux de Montpellier
4 BCMaterials, Basque Center for Materials
5 Departamento de Química Inorgánica, Facultad de Ciencia y Tecnologia
6 MADIREL - Matériaux divisés, interfaces, réactivité, électrochimie
7 Facultad de Ciencia y Tecnologia

In the endless possibility space of metal organic framework design, the quest for new multifunctional materials with desirable properties is still ongoing. At the environmental level, their development poses a promising industrial alternative for the management of aqueous pollutants and for storage and separation of gases. In this context, the recently reported porphyrinic framework 1, [Ni5(H2TCPP)2O(H2O)4]•nS (where H6TCPP is meso-tetra(4-carboxyphenyl)porphyrin and S is the solvent) is investigated through a fundamental study of its thermal and magnetic properties, together with its potential as an adsorbent for pollutants in the liquid and gas phase. Sorption of four organic dye solutions with different chemical features was carried out, with good affinity found towards small cationic species. In addition, a series of different gases (N2, O2, CO, CO2, C1-C4 hydrocarbons) were tested through the use of adsorption microcalorimetry in order to understand the interactions and selectivity of 1. This study affords an in-depth approach to the characterization of a new selective adsorbent for pollutants of industrial interest.

Domaines: Matériaux

Eder Amayuelas, Paul Iacomi, Arkaitz Fidalgo-Marijuan, Begoña Bazán, Miren Karmele Urtiaga, et al.. Multifunctionality of weak ferromagnetic porphyrin-based MOF: selective adsorption in liquid and gas phase. CrystEngComm, 2021, 23 (23), pp.4205-4213. ⟨10.1039/D1CE00046B⟩. ⟨hal-03662699⟩