Keywords :
CO2 adsorbents; Functionalized; Membrane separation; Metal organic framework; Mixed matrix membranes; Mixed-ligands; Separation performance; Simple approach; Chemistry (all); Renewable Energy, Sustainability and the Environment; Materials Science (all)
Abstract :
[en] In this paper, a simple approach to study the fundamental aspect of the light-responsive metal-organic framework (MOF) in UiO-66 topology through a mixed-ligand approach is reported. Apart from change in the structural properties, the loading of an azobenzene linker inside the framework also affects the CO2 light-responsive properties and CO2/N2 selectivity which could help to design future low-energy CO2 adsorbents. Further study to incorporate MOFs into mixed matrix membranes using PIM-1 as the polymer matrix also indicates the benefits of having a higher azobenzene loading in the MOF to enhance the CO2/N2 separation performance since it can improve the separation performance that could not be obtained in non-functionalized fillers.
Funding text :
N. P. acknowledges the PhD scholarship funding from the Department of Chemical Engineering, Imperial College London. The assistance of Mrs Patricia Carry and Mr Kaho Cheung for various analytical techniques is gratefully acknowledged. The assistance of Dr Piers Gaffney, Dr Lorena dos Santos de Souza and Dr Marcus Cook for the ligand synthesis, GC setup and PIM-1 preparation, respectively, is also acknowledged.
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