High performance of PES-GNs MMMs for gas separation and selectivity

In this study, graphene nanosheets (GNs) were incorporated into polyethersulfone (PES) by phase inversion approach for preparing PES-GNs mixed matrix membranes (MMMs). To investigate the impact of filler content on membrane surface morphology, thermal stability, chemical composition, porosity and me...

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Autores principales: Alaa Mohamed, Samy Yousef, Andrius Tonkonogovas, Vidas Makarevicius, Arūnas Stankevičius
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Publicado: Elsevier 2022
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spelling oai:doaj.org-article:bfada0feea8043d1bb5fdd7dade9527c2021-11-26T04:26:18ZHigh performance of PES-GNs MMMs for gas separation and selectivity1878-535210.1016/j.arabjc.2021.103565https://doaj.org/article/bfada0feea8043d1bb5fdd7dade9527c2022-02-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1878535221005803https://doaj.org/toc/1878-5352In this study, graphene nanosheets (GNs) were incorporated into polyethersulfone (PES) by phase inversion approach for preparing PES-GNs mixed matrix membranes (MMMs). To investigate the impact of filler content on membrane surface morphology, thermal stability, chemical composition, porosity and mechanical properties, MMMs were constructed with various GNs loadings (0.01, 0.02, 0.03, and 0.04 wt%). ​The performance of prepared MMMs was tested for separation and selectivity of CO2, N2, H2 and CH4 gases at various pressures from 1 to 6 bar and temperature varying from 20 to 60 °C. It was observed that, compared to the pristine PES membrane, the prepared MMMs significantly improved the gas separation and selectivity performance with adequate mechanical stability. The permeability of CO2, N2, H2 and CH4 for the PES + 0.04 wt% GNs increases from 9 to 2246, 11 to 2235, 9 to 7151, and 3 to 4176 Barrer respectively, as compared with pure PES membrane at 1 bar and 20 °C due to improving the membrane absorption and porosity. In addition, by increasing the pressure, the permeability and selectivity of CO2, N2, H2 and CH4 are increased due to the increased driving force for the transport of gas via membranes. Furthermore, the permeability of CO2, N2, H2 and CH4 increased by increasing the temperature from 20 to 60 °C due to the plasticization in the membranes and the improvement in polymer chain movement. This result proved that the prepared membranes can be used for gas separation applications.Alaa MohamedSamy YousefAndrius TonkonogovasVidas MakareviciusArūnas StankevičiusElsevierarticlePolyethersulfone (PES)Graphene nanosheets (GNs)Mixed matrix membranes (MMMs)Gas separation membraneCO2/N2, CO2/H2 and CO2/CH4 selectivityChemistryQD1-999ENArabian Journal of Chemistry, Vol 15, Iss 2, Pp 103565- (2022)
institution DOAJ
collection DOAJ
language EN
topic Polyethersulfone (PES)
Graphene nanosheets (GNs)
Mixed matrix membranes (MMMs)
Gas separation membrane
CO2/N2, CO2/H2 and CO2/CH4 selectivity
Chemistry
QD1-999
spellingShingle Polyethersulfone (PES)
Graphene nanosheets (GNs)
Mixed matrix membranes (MMMs)
Gas separation membrane
CO2/N2, CO2/H2 and CO2/CH4 selectivity
Chemistry
QD1-999
Alaa Mohamed
Samy Yousef
Andrius Tonkonogovas
Vidas Makarevicius
Arūnas Stankevičius
High performance of PES-GNs MMMs for gas separation and selectivity
description In this study, graphene nanosheets (GNs) were incorporated into polyethersulfone (PES) by phase inversion approach for preparing PES-GNs mixed matrix membranes (MMMs). To investigate the impact of filler content on membrane surface morphology, thermal stability, chemical composition, porosity and mechanical properties, MMMs were constructed with various GNs loadings (0.01, 0.02, 0.03, and 0.04 wt%). ​The performance of prepared MMMs was tested for separation and selectivity of CO2, N2, H2 and CH4 gases at various pressures from 1 to 6 bar and temperature varying from 20 to 60 °C. It was observed that, compared to the pristine PES membrane, the prepared MMMs significantly improved the gas separation and selectivity performance with adequate mechanical stability. The permeability of CO2, N2, H2 and CH4 for the PES + 0.04 wt% GNs increases from 9 to 2246, 11 to 2235, 9 to 7151, and 3 to 4176 Barrer respectively, as compared with pure PES membrane at 1 bar and 20 °C due to improving the membrane absorption and porosity. In addition, by increasing the pressure, the permeability and selectivity of CO2, N2, H2 and CH4 are increased due to the increased driving force for the transport of gas via membranes. Furthermore, the permeability of CO2, N2, H2 and CH4 increased by increasing the temperature from 20 to 60 °C due to the plasticization in the membranes and the improvement in polymer chain movement. This result proved that the prepared membranes can be used for gas separation applications.
format article
author Alaa Mohamed
Samy Yousef
Andrius Tonkonogovas
Vidas Makarevicius
Arūnas Stankevičius
author_facet Alaa Mohamed
Samy Yousef
Andrius Tonkonogovas
Vidas Makarevicius
Arūnas Stankevičius
author_sort Alaa Mohamed
title High performance of PES-GNs MMMs for gas separation and selectivity
title_short High performance of PES-GNs MMMs for gas separation and selectivity
title_full High performance of PES-GNs MMMs for gas separation and selectivity
title_fullStr High performance of PES-GNs MMMs for gas separation and selectivity
title_full_unstemmed High performance of PES-GNs MMMs for gas separation and selectivity
title_sort high performance of pes-gns mmms for gas separation and selectivity
publisher Elsevier
publishDate 2022
url https://doaj.org/article/bfada0feea8043d1bb5fdd7dade9527c
work_keys_str_mv AT alaamohamed highperformanceofpesgnsmmmsforgasseparationandselectivity
AT samyyousef highperformanceofpesgnsmmmsforgasseparationandselectivity
AT andriustonkonogovas highperformanceofpesgnsmmmsforgasseparationandselectivity
AT vidasmakarevicius highperformanceofpesgnsmmmsforgasseparationandselectivity
AT arunasstankevicius highperformanceofpesgnsmmmsforgasseparationandselectivity
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