New Azo-DMOF-1 MOF as a Photoresponsive Low-Energy CO2 Adsorbent and Its Exceptional CO2/N2 Separation Performance in Mixed Matrix Membranes

Sep 11, 2018·
N. prasetya
Prof. Dr. Bradley P. Ladewig
Prof. Dr. Bradley P. Ladewig
· 0 min read
Abstract
A new generation-2 light-responsive metal–organic framework (MOF) has been successfully synthesized using Zn as the metal source and both 2-phenyldiazenyl terephthalic acid and 1,4-diazabicyclo[2.2.2]octane (DABCO) as the ligands. It was found that Zn-azo-dabco MOF (Azo-DMOF-1) exhibited a photoresponsive CO2 adsorption both in static and dynamic condition because of the presence of azobenzene functionalities from the ligand. Further application of this MOF was evaluated by incorporating it as a filler in a mixed matrix membrane for CO2/N2 gas separation. Matrimid and polymer of intrinsic microporosity-1 (PIM-1) were used as the polymer matrix. It was found that Azo-DMOF-1 could enhance both the CO2 permeability and selectivity of the pristine polymer. In particular, the Azo-DMOF-1–PIM-1 composite membranes have shown a promising performance that surpassed the 2008 Robeson Upper Bound.
Type
Publication
ACS Applied Materials and Interfaces
Authors
N. prasetya
Prof. Dr. Bradley P. Ladewig
Authors
Prof. Dr. Bradley P. Ladewig
Professor
Prof. Dr. Bradley P. Ladewig is Paul Wurth Chair of Energy Process Engineering in the Department of Engineering, and Vice-Dean of the Faculty of Science, Technology and Medicine, at the University of Luxembourg.