Rapid fabrication of MOF-based mixed matrix membranes through digital light processing

Alexey Pustovarenko, Beatriz Seoane, Edy Abou-Hamad, Helen E. King, Bert M. Weckhuysen, Freek Kapteijn, Jorge Gascon

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


3D printing, also known as additive manufacturing technology, has greatly expanded across multiple sectors of technology replacing classical manufacturing methods by combining processing speed and high precision. The scientific interest in this technology lies in the ability to create solid architectures with customized shapes and predetermined properties through the exploration of formulations enriched with multifunctional microporous additives such as metal-organic frameworks (MOFs). The concept of additive manufacturing involving advanced materials could be fruitfully adapted for MOF-based mixed matrix membrane fabrication to be used in gas separation applications. In this work, a digital light processing (DLP) approach for fast prototyping of MOF-based mixed matrix membranes (MOF-MMMs) with full control over the shape, size and thickness of the resulting composite using a conventionally available 3D printer has been explored. MOF-based printable inks have been formulated from a selection of commercially available acrylate oligomers and MIL-53(Al)-NH2 additive post-synthetically modified with methacrylic functionality. The formulations and resulting composites have been extensively characterized to demonstrate the suitability of the inks for DLP processing into free-standing MOF-based membranes. The MOF filler anchored to the polymeric matrix enhances the overall permeability at constant selectivity when applied for H2/CO2 separation. The obtained results confirm the applicability of the 3D DLP technology for fast prototyping of MOF-based MMMs and provide new opportunities for further development.
Original languageEnglish (US)
Pages (from-to)2739-2749
Number of pages11
JournalMaterials Advances
Issue number8
StatePublished - Mar 9 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-05-11
Acknowledgements: A. P., E. A.-H. and J. G. acknowledge King Abdullah University of Science and Technology (KAUST) for the financial support. B. S. was supported by her personal VENI grant (The Netherlands National Science Foundation, NWO). The authors gratefully acknowledge Sartomer (Arkema Group) for providing them with the samples of acrylate oligomer mixtures used in this study.


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