Highly reversible sorption of H2S and CO2 by an environmentally friendly Mg-based MOF

Mg-CUK-1, an ecologically friendly material synthesised in water is found to be a high-capacity, highly reversible adsorbent for acidic gases including H2S and CO2. Furthermore, Mg-CUK-1 is demonstrated to retain long-range crystallinity upon sorption cycling; its sorption performance is maintained...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2018, Vol.6 (35), p.16900-16909
Main Authors: Sánchez-González, Elí, Mileo, Paulo G M, Sagastuy-Breña, Mónica, Álvarez, J Raziel, Reynolds, Joseph E, Villarreal, Aline, Gutiérrez-Alejandre, Aída, Ramírez, Jorge, Balmaseda, Jorge, González-Zamora, Eduardo, Maurin, Guillaume, Humphrey, Simon M, Ibarra, Ilich A
Format: Article
Language:English
Subjects:
Adsorbents
Carbon dioxide
Computer applications
Gas streams
Gases
Hydrogen sulfide
Purification
Relative humidity
Sorption
Streams
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Summary:Mg-CUK-1, an ecologically friendly material synthesised in water is found to be a high-capacity, highly reversible adsorbent for acidic gases including H2S and CO2. Furthermore, Mg-CUK-1 is demonstrated to retain long-range crystallinity upon sorption cycling; its sorption performance is maintained over multiple cycles, even in the presence of high relative humidity (95%). Reversible H2S adsorption by Mg-CUK-1 is rare among MOFs studied for this purpose to date. The joint experimental and computational studies presented here show that Mg-CUK-1 is an effective solid adsorbent for applications in the field of acid gas capture, an application that is highly relevant for the purification of many industrial gas streams.
ISSN:2050-7488
2050-7496
DOI:10.1039/c8ta05400b