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Mechanistic aspects of water adsorption-desorption in porphyrin containing MOFs

Wiśniewski, M., Bieniek, A., Bolibok, P., Koter, S., Bryk, P., Kowalczyk, P. and Terzyk, A.P. (2019) Mechanistic aspects of water adsorption-desorption in porphyrin containing MOFs. Microporous and Mesoporous Materials, 290 . article no. 109649.

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Although porphyrin containing metal organic frameworks (PCMOFs) have found applications in different important fields, for example catalysis, phototherapy, adsorption etc. the mechanism of water adsorption on these materials remains unknown. In this study we analyze adsorption-desorption data on three PCMOFs. It is shown that hysteresis on adsorption-desorption isotherms is caused probably by the structural deformations. The application of SAFT-VR model to describe the experimental data is in agreement with the in - situ DRIFT insight of the process showing that the affinity between water and studied MOFS decreases as follows: CaTCPP > MgTCPP > ZnTCPP > TCPP. Application of the in-situ DRIFT method leads to important information about the nature of water material interactions showing for example the creation of aqua complexes and hydrogen bonds.

Item Type: Journal Article
Murdoch Affiliation(s): School of Engineering and Information Technology
Publisher: Elsevier B.V.
Copyright: © 2019 Elsevier Inc.
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