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Rapid determination of experimental sorption isotherms from non-equilibrium sorption kinetic data
Date
2024
Abstract
Herein, we report a new method for rapid determination of experimental sorption isotherms that exploits gravimetric non-equilibrium sorption kinetics data in a thin sorbent bed. In comparison with equilibrium-based isotherm determination methods, this sorption kinetics isotherm determination (SKID) method needs only two equilibrium points, P/P0min and P/P0max. SKID requires up to an order of magnitude less data collection time than conventional methods and is suitable for high-throughput sorbent discovery and evaluation. SKID was validated by testing a library comprising 30 sorbents, including rigid and flexible metal-organic frameworks (MOFs), inorganics (zeolites), and organics (microcrystalline cellulose). Average data collection time for water vapor was 3.1 vs. 23 h for dynamic vapor sorption experiments. SKID was also demonstrated for other vapors (C8 aromatics) and a gas (CO2), making it a promising tool for rapid screening of new or existing sorbents for applications such as water harvesting and dehumidification and carbon capture.
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Description
Publisher
Elsevier
Citation
Chem, 2024, 10 (5), pp. 1458-1470
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Bezrukov_2024_Rapid.pdf
Adobe PDF, 4.82 MB
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Funding Information
This work was supported by the Science Foundation Ireland (16/IA/4624, 21/US/3760) and Molecule RnD LtD (CRA AQUASORB I-IV). A.A.B. thanks Dr. Soumya Mukherjee for useful discussions and Yassin H. Andaloussi for valuable feedback on SKID software GUI.
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Type
Article
Rights
https://creativecommons.org/licenses/by-nc-sa/4.0/