SO2 capture enhancement due to confined methanol within MIL-53(Al)-TDC

J Antonio Zárate; Eduardo González-Zamora; Ilich A Ibarra; Gabriela Díaz

doi:10.1039/d2dt03105a

SO₂ capture enhancement due to confined methanol within MIL-53(Al)-TDC

Dalton Trans. 2022 Dec 20;52(1):16-19. doi: 10.1039/d2dt03105a.

Authors

J Antonio Zárate¹, Eduardo González-Zamora², Ilich A Ibarra³, Gabriela Díaz¹

Affiliations

¹ Instituto de Física, Universidad Nacional Autónoma de México, Apartado Postal 20-364, Ciudad de México 0100, Mexico.
² Departamento de Química, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, C. P. 09340, Ciudad de México, Mexico.
³ 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, 04510, Ciudad de México, Mexico. argel@unam.mx.

PMID: 36472152
DOI: 10.1039/d2dt03105a

Abstract

The SO₂ capture performance of MIL-53(Al)-TDC was optimised by confining a small amount of MeOH within its pores (MeOH@MIL-53(Al)-TDC). In comparison with fully activated MIL-53(Al)-TDC, MeOH@MIL-53(Al)-TDC shows a 39% higher SO₂ capture capacity. Monte Carlo simulations revealed that such an enhancement is associated with an increase in the degree of confinement via the SO₂ molecules resulting from the formation of a lump (MeOH molecules) in the vicinity of the μ-OH groups.