Detection of SO2 using a chemically stable Ni(II)-MOF

Valeria B López-Cervantes; Dae Won Kim; Juan L Obeso; Eva Martínez-Ahumada; Yoarhy A Amador-Sánchez; Elí Sánchez-González; Carolina Leyva; Chang Seop Hong; Ilich A Ibarra; Diego Solis-Ibarra

doi:10.1039/d3nr02936k

Detection of SO₂ using a chemically stable Ni(II)-MOF

Nanoscale. 2023 Aug 3;15(30):12471-12475. doi: 10.1039/d3nr02936k.

Affiliations

¹ Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Coyoacán, 04510, Ciudad de México, Mexico. diego.solis@unam.mx.
² Department of Chemistry, Korea University, Seoul 02841, Republic of Korea. cshong@korea.ac.kr.
³ Instituto Politécnico Nacional, CICATA U. Legaria, Laboratorio Nacional de Ciencia, Tecnología y Gestión Integrada del Agua (LNAgua), Legaria 694 Irrigación, Miguel Hidalgo, 11500, CDMX, Mexico.

PMID: 37462135
DOI: 10.1039/d3nr02936k

Abstract

The MOF-type Ni₂(dobpdc) shows a high chemical stability towards SO₂, high capacity for SO₂ capture at low pressure (4.3 mmol g^-1 at 298 K and up to 0.05 bar), and exceptional cycling performance. Fluorescence experiments demonstrated the SO₂ detection properties of Ni₂(dobpdc) with a remarkable SO₂ detection selectivity. Finally, time-resolved photoluminescence experiments provided a plausible mechanism of SO₂ detection by this Ni(II)-based MOF material.