Construction of graphene oxide based mixed matrix membranes with CO2-philic sieving gas-transport channels through strong p-p Interactions
© 2018 The Royal Society of Chemistry. Two-dimensional nanomaterials can be used to create innovative membranes with high permeability and selectivity, but precise manipulation of laminar stacking and the construction of ordered, CO2-philic molecular sieving channels remains a technological challeng...
| Main Authors: | , , , , , , , |
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| Format: | Journal Article |
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R S C Publications
2018
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| Online Access: | http://hdl.handle.net/20.500.11937/72755 |
| _version_ | 1848762833858199552 |
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| author | Cong, S. Li, H. Shen, X. Wang, J. Zhu, J. Liu, Jian Zhang, Y. Van Der Bruggen, B. |
| author_facet | Cong, S. Li, H. Shen, X. Wang, J. Zhu, J. Liu, Jian Zhang, Y. Van Der Bruggen, B. |
| author_sort | Cong, S. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | © 2018 The Royal Society of Chemistry. Two-dimensional nanomaterials can be used to create innovative membranes with high permeability and selectivity, but precise manipulation of laminar stacking and the construction of ordered, CO2-philic molecular sieving channels remains a technological challenge. Here, gas separation membranes containing advanced CO2-philic nano-laminar clusters in the interlayer channels of graphene oxide (GO) were formed by the intercalation of an o-hydroxya porous organic polymers (POPs) into GO. POPs are phenolic azo-hierarchically mesoporous polymers; the azo group of POPs allows to reject N2, while the unreacted phenolic groups on the POP surface have a high CO2-philic and nanocephalic character. Beyond that, the introduced POPs could tailor the interlayer height of graphene oxide-assembled 2D nanochannels and feature an ordered structure of such graphene oxide nanosheets. Therefore, POP-GO may facilitate a superior CO2/N2separation performance for the membrane because of the synergetic effect of GO and POPs. The POP-GO membrane was found to have a high CO2permeability of 696 barrer and a CO2/N2ideal selectivity of 51.2, which is beyond Robeson's upper bound (2008). The d-spacing of graphene oxide after adjustment is approximately 3.5 Å according to a Density Functional Theory (DFT) simulation; this is between the dynamic radius of CO2and N2. This approach potentially offers the opportunity to precisely manipulate the d-spacing of graphene oxide through chemical bonds, which has potential for large-scale applications compared to conventional vacuum-assisted filtration. |
| first_indexed | 2025-11-14T10:53:51Z |
| format | Journal Article |
| id | curtin-20.500.11937-72755 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:53:51Z |
| publishDate | 2018 |
| publisher | R S C Publications |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-727552023-08-02T06:39:12Z Construction of graphene oxide based mixed matrix membranes with CO2-philic sieving gas-transport channels through strong p-p Interactions Cong, S. Li, H. Shen, X. Wang, J. Zhu, J. Liu, Jian Zhang, Y. Van Der Bruggen, B. © 2018 The Royal Society of Chemistry. Two-dimensional nanomaterials can be used to create innovative membranes with high permeability and selectivity, but precise manipulation of laminar stacking and the construction of ordered, CO2-philic molecular sieving channels remains a technological challenge. Here, gas separation membranes containing advanced CO2-philic nano-laminar clusters in the interlayer channels of graphene oxide (GO) were formed by the intercalation of an o-hydroxya porous organic polymers (POPs) into GO. POPs are phenolic azo-hierarchically mesoporous polymers; the azo group of POPs allows to reject N2, while the unreacted phenolic groups on the POP surface have a high CO2-philic and nanocephalic character. Beyond that, the introduced POPs could tailor the interlayer height of graphene oxide-assembled 2D nanochannels and feature an ordered structure of such graphene oxide nanosheets. Therefore, POP-GO may facilitate a superior CO2/N2separation performance for the membrane because of the synergetic effect of GO and POPs. The POP-GO membrane was found to have a high CO2permeability of 696 barrer and a CO2/N2ideal selectivity of 51.2, which is beyond Robeson's upper bound (2008). The d-spacing of graphene oxide after adjustment is approximately 3.5 Å according to a Density Functional Theory (DFT) simulation; this is between the dynamic radius of CO2and N2. This approach potentially offers the opportunity to precisely manipulate the d-spacing of graphene oxide through chemical bonds, which has potential for large-scale applications compared to conventional vacuum-assisted filtration. 2018 Journal Article http://hdl.handle.net/20.500.11937/72755 10.1039/c8ta05774e R S C Publications restricted |
| spellingShingle | Cong, S. Li, H. Shen, X. Wang, J. Zhu, J. Liu, Jian Zhang, Y. Van Der Bruggen, B. Construction of graphene oxide based mixed matrix membranes with CO2-philic sieving gas-transport channels through strong p-p Interactions |
| title | Construction of graphene oxide based mixed matrix membranes with CO2-philic sieving gas-transport channels through strong p-p Interactions |
| title_full | Construction of graphene oxide based mixed matrix membranes with CO2-philic sieving gas-transport channels through strong p-p Interactions |
| title_fullStr | Construction of graphene oxide based mixed matrix membranes with CO2-philic sieving gas-transport channels through strong p-p Interactions |
| title_full_unstemmed | Construction of graphene oxide based mixed matrix membranes with CO2-philic sieving gas-transport channels through strong p-p Interactions |
| title_short | Construction of graphene oxide based mixed matrix membranes with CO2-philic sieving gas-transport channels through strong p-p Interactions |
| title_sort | construction of graphene oxide based mixed matrix membranes with co2-philic sieving gas-transport channels through strong p-p interactions |
| url | http://hdl.handle.net/20.500.11937/72755 |