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Title: Separating Saturated Alkylaromatics from Their Unsaturated Analogues Using Metal-Organic Frameworks
Authors: Maes, MichaĆ«l ×
Vermoortele, Frederik
Alaerts, Luc
Denayer, Joeri F. M
De Vos, Dirk #
Issue Date: Feb-2011
Publisher: American Chemical Society
Series Title: Journal of Physical Chemistry C vol:115 issue:4 pages:1051-1055
Abstract: This work studies the liquid phase separation of styrene and ethylbenzene on the metal-organic framework [Cu-3(BTC)(2)] (BTC = 1,3,5-benzenetricarboxylate) as well as the analogous separation of vinyltoluenes from ethyltoluenes. Batch and column experiments have been performed to demonstrate the capacity of the material to separate styrene and ethylbenzene. Adsorption capacities of around 20 wt % are measured, while separation factors reach values as high as 5.5. As is demonstrated by UV-vis absorption measurements, the adsorption mechanism is based on specific interactions between the free Cu2+ ligation sites of the framework and the pi-electrons of the aromatic compounds. For the separation of the vinyltoluenes and ethyltoluenes, similar capacities and separation factors have been obtained as for the separation of styrene and ethylbenzene, which suggests an analogous adsorption mechanism.
ISSN: 1932-7447
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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