TY - JOUR
T1 - Graphene oxide doped ionic liquid ultrathin composite membranes for efficient CO2 capture
AU - Karunakaran, Madhavan
AU - Villalobos, Luis Francisco
AU - Kumar, Mahendra
AU - Shevate, Rahul
AU - Akhtar, Faheem
AU - Peinemann, Klaus-Viktor
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: Authors gratefully acknowledge financial support from the King Abdullah University of Science and Technology (KAUST).
PY - 2017
Y1 - 2017
N2 - Advanced membrane systems with high flux and sufficient selectivity are required for industrial gas separation processes. In order to achieve high flux and high selectivity, the membrane material should be as thin as possible and it should have selective sieving channels and long term stability. This could be achieved by designing a three component material consisting of a blend of an ionic liquid and graphene oxide covered by a highly permeable low selective polymeric coating. By using a simple dip coating technique, we prepared high flux and CO selective ultrathin graphene oxide (GO)/ionic liquid membranes on a porous ultrafiltration support. The ultrathin composite membranes derived from GO/ionic liquid complex displays remarkable combinations of permeability (CO flux: 37 GPU) and selectivity (CO/N selectivity: 130) that surpass the upper bound of ionic liquid membranes for CO/N separation. Moreover, the membranes were stable when tested for 120 hours.
AB - Advanced membrane systems with high flux and sufficient selectivity are required for industrial gas separation processes. In order to achieve high flux and high selectivity, the membrane material should be as thin as possible and it should have selective sieving channels and long term stability. This could be achieved by designing a three component material consisting of a blend of an ionic liquid and graphene oxide covered by a highly permeable low selective polymeric coating. By using a simple dip coating technique, we prepared high flux and CO selective ultrathin graphene oxide (GO)/ionic liquid membranes on a porous ultrafiltration support. The ultrathin composite membranes derived from GO/ionic liquid complex displays remarkable combinations of permeability (CO flux: 37 GPU) and selectivity (CO/N selectivity: 130) that surpass the upper bound of ionic liquid membranes for CO/N separation. Moreover, the membranes were stable when tested for 120 hours.
UR - http://hdl.handle.net/10754/622765
UR - http://pubs.rsc.org/en/Content/ArticleLanding/2017/TA/C6TA08858A#!divAbstract
UR - http://www.scopus.com/inward/record.url?scp=85008324697&partnerID=8YFLogxK
U2 - 10.1039/c6ta08858a
DO - 10.1039/c6ta08858a
M3 - Article
SN - 2050-7488
VL - 5
SP - 649
EP - 656
JO - J. Mater. Chem. A
JF - J. Mater. Chem. A
IS - 2
ER -