Capture and detection of SO2 using a chemically stable Mg(II)–MOF

Eva Martínez-Ahumada; Dae won Kim; Mohammad Wahiduzzaman; Paulina Carmona-Monroy; Alfredo López-Olvera; Daryl R. Williams; Vladimir Martis; Hugo A. Lara-García; S. López-Morales; Diego Solis-Ibarra; Guillaume Maurin; Ilich A. Ibarra; Chang Seop Hong

doi:10.1039/D2TA04842F

Capture and detection of SO₂ using a chemically stable Mg(ii)–MOF†

Eva Martínez-Ahumada,‡^a Dae won Kim,‡^b Mohammad Wahiduzzaman,‡^c Paulina Carmona-Monroy,^a Alfredo López-Olvera,^a Daryl R. Williams,^d Vladimir Martis,^e Hugo A. Lara-García,^f S. López-Morales,^g Diego Solis-Ibarra,

^a Guillaume Maurin,

*^c Ilich A. Ibarra

*^a and Chang Seop Hong

*^b

Author affiliations

* Corresponding authors

^a Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Del. Coyoacán, Ciudad de México, Mexico
E-mail: argel@unam.mx
Fax: +52-55-5622-4595

^b Department of Chemistry, Korea University, Seoul 02841, Republic of Korea
E-mail: cshong@korea.ac.kr

^c ICGM, Univ. Montpellier, CNRS, ENSCM, Montpellier, France
E-mail: guillaume.maurin1@umontpellier.fr

^d Director of Discovery Space and Professor of Particle Science, Department of Chemical Engineering, Imperial College, Kensington, London SW7 2BY, UK

^e Surface Measurement Systems, Unit 5, Wharfside, Rosemont Road, London HA0 4PE, UK

^f Instituto de Física, Universidad Nacional Autónoma de México, Circuito de la Investigación Científica s/n, CU, Coyoacán, Ciudad de México, Mexico

^g Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Del. Coyoacán, Ciudad de México, Mexico

Abstract

The MOF-type Mg₂(dobpdc) shows a record high capacity for SO₂ capture (19.5 mmol g⁻¹ at 298 K and up to 1 bar), high chemical stability towards dry and humid SO₂ and an outstanding cycling performance with facile regeneration. Advanced molecular simulations have been coupled to gain insight into the molecular mechanisms responsible for the high adsorption of SO₂. Fluorescence experiments further demonstrated the SO₂ detection properties of this MOF material.

Journal of Materials Chemistry A

Capture and detection of SO₂ using a chemically stable Mg(ii)–MOF†

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Capture and detection of SO₂ using a chemically stable Mg(II)–MOF

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Journal of Materials Chemistry A