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†

Valeria B. López-Cervantes,‡^a Dae Won Kim,‡^b Juan L. Obeso,

‡^ac Eva Martínez-Ahumada,^a Yoarhy A. Amador-Sánchez,^a Elí Sánchez-González,

^a Carolina Leyva,

^c Chang Seop Hong,

*^b Ilich A. Ibarra

*^a and Diego Solis-Ibarra

*^a

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* 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, Coyoacán, Ciudad de México, Mexico
E-mail: diego.solis@unam.mx, 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 Instituto Politécnico Nacional, CICATA U. Legaria, Laboratorio Nacional de Ciencia, Tecnología y Gestión Integrada del Agua (LNAgua), Legaria 694 Irrigación, Miguel Hidalgo, CDMX, Mexico

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.

This article is part of the themed collection: Fundamental Processes in Optical Nanomaterials

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

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