Computational Study on the Separation of Pentane Isomers in Functionalized UiO-66 Metal-Organic Frameworks

The efficient separation of light hydrocarbons, particularly alkanes from their isomers (C<sub>5</sub>–C<sub>6</sub>), represents a significant and energy-intensive challenge for the petrochemical industry. Metal-Organic Frameworks (MOFs) offer promising solutions due to thei...

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Main Authors: Néstor Ariel Pérez-Chávez, Matias Rafti, Alberto Gustavo Albesa
Format: Article
Language:English
Published: MDPI AG 2025-06-01
Series:Separations
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Online Access:https://www.mdpi.com/2297-8739/12/6/152
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author Néstor Ariel Pérez-Chávez
Matias Rafti
Alberto Gustavo Albesa
author_facet Néstor Ariel Pérez-Chávez
Matias Rafti
Alberto Gustavo Albesa
author_sort Néstor Ariel Pérez-Chávez
collection DOAJ
description The efficient separation of light hydrocarbons, particularly alkanes from their isomers (C<sub>5</sub>–C<sub>6</sub>), represents a significant and energy-intensive challenge for the petrochemical industry. Metal-Organic Frameworks (MOFs) offer promising solutions due to their exceptional porosity, surface area, and, crucially, their structural and chemical tunability. This study employs advanced computational methods, including Grand Canonical Monte Carlo (GCMC) simulations and Molecular Dynamics (MD), to systematically investigate the adsorption and separation of pentane isomers (n-pentane, isopentane, and neopentane) in the UiO-66 MOF family. Specifically, the impact of organic linker functionalization with -H (parent), -NH<sub>2</sub>, -CH<sub>3</sub>, and -COOH groups on adsorption isotherms, isosteric heats, and competitive behavior in mixtures is evaluated. The analysis provides a molecular-level view of host-guest and guest-guest interactions, elucidating the recognition and selectivity mechanisms governing the separation of these C5 isomers and the potential for engineering MOF materials for this application.
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series Separations
spelling doaj-art-dbd38d65de9c403aa7286829dd45c2f62025-06-25T14:25:56ZengMDPI AGSeparations2297-87392025-06-0112615210.3390/separations12060152Computational Study on the Separation of Pentane Isomers in Functionalized UiO-66 Metal-Organic FrameworksNéstor Ariel Pérez-Chávez0Matias Rafti1Alberto Gustavo Albesa2Department of Chemistry, Faculty of Exact Sciences, INIFTA, National University of La Plata and CONICET, C.C. 16, Suc. 4, La Plata B1904DPI, ArgentinaDepartment of Chemistry, Faculty of Exact Sciences, INIFTA, National University of La Plata and CONICET, C.C. 16, Suc. 4, La Plata B1904DPI, ArgentinaDepartment of Chemistry, Faculty of Exact Sciences, INIFTA, National University of La Plata and CONICET, C.C. 16, Suc. 4, La Plata B1904DPI, ArgentinaThe efficient separation of light hydrocarbons, particularly alkanes from their isomers (C<sub>5</sub>–C<sub>6</sub>), represents a significant and energy-intensive challenge for the petrochemical industry. Metal-Organic Frameworks (MOFs) offer promising solutions due to their exceptional porosity, surface area, and, crucially, their structural and chemical tunability. This study employs advanced computational methods, including Grand Canonical Monte Carlo (GCMC) simulations and Molecular Dynamics (MD), to systematically investigate the adsorption and separation of pentane isomers (n-pentane, isopentane, and neopentane) in the UiO-66 MOF family. Specifically, the impact of organic linker functionalization with -H (parent), -NH<sub>2</sub>, -CH<sub>3</sub>, and -COOH groups on adsorption isotherms, isosteric heats, and competitive behavior in mixtures is evaluated. The analysis provides a molecular-level view of host-guest and guest-guest interactions, elucidating the recognition and selectivity mechanisms governing the separation of these C5 isomers and the potential for engineering MOF materials for this application.https://www.mdpi.com/2297-8739/12/6/152Metal-Organic FrameworksUiO-66pentane isomersadsorptionseparationGCMC simulations
spellingShingle Néstor Ariel Pérez-Chávez
Matias Rafti
Alberto Gustavo Albesa
Computational Study on the Separation of Pentane Isomers in Functionalized UiO-66 Metal-Organic Frameworks
Separations
Metal-Organic Frameworks
UiO-66
pentane isomers
adsorption
separation
GCMC simulations
title Computational Study on the Separation of Pentane Isomers in Functionalized UiO-66 Metal-Organic Frameworks
title_full Computational Study on the Separation of Pentane Isomers in Functionalized UiO-66 Metal-Organic Frameworks
title_fullStr Computational Study on the Separation of Pentane Isomers in Functionalized UiO-66 Metal-Organic Frameworks
title_full_unstemmed Computational Study on the Separation of Pentane Isomers in Functionalized UiO-66 Metal-Organic Frameworks
title_short Computational Study on the Separation of Pentane Isomers in Functionalized UiO-66 Metal-Organic Frameworks
title_sort computational study on the separation of pentane isomers in functionalized uio 66 metal organic frameworks
topic Metal-Organic Frameworks
UiO-66
pentane isomers
adsorption
separation
GCMC simulations
url https://www.mdpi.com/2297-8739/12/6/152
work_keys_str_mv AT nestorarielperezchavez computationalstudyontheseparationofpentaneisomersinfunctionalizeduio66metalorganicframeworks
AT matiasrafti computationalstudyontheseparationofpentaneisomersinfunctionalizeduio66metalorganicframeworks
AT albertogustavoalbesa computationalstudyontheseparationofpentaneisomersinfunctionalizeduio66metalorganicframeworks