Mixed matrix membrane containing metal oxide nanosheets for efficient CO2 separation
The two-dimensional (2D) nanosheet zinc cobaltate (ZnCo2O4) was added into polyether block amide (Pebax) matrix to prepare mixing matrix membrane (MMM) for separating carbon dioxide (CO2)/methane (CH4) gas mixture. The 2D porous ZnCo2O4 nanosheets were composed of chemically interconnected metal oxi...
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KeAi Communications Co. Ltd.
2021-03-01
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| Series: | Green Chemical Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666952820300443 |
| _version_ | 1797976388966285312 |
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| author | Weifang Zhu Fu Liu Minmin Gou Ruili Guo Xueqin Li |
| author_facet | Weifang Zhu Fu Liu Minmin Gou Ruili Guo Xueqin Li |
| author_sort | Weifang Zhu |
| collection | DOAJ |
| description | The two-dimensional (2D) nanosheet zinc cobaltate (ZnCo2O4) was added into polyether block amide (Pebax) matrix to prepare mixing matrix membrane (MMM) for separating carbon dioxide (CO2)/methane (CH4) gas mixture. The 2D porous ZnCo2O4 nanosheets were composed of chemically interconnected metal oxide nanoparticles. The ZnCo2O4 nanoparticles in the nanosheets constructed large-quantity pores of 11.78 nm and provided abundant transfer channels for gas molecule. Moreover, the synergistic effect of bimetallic Zn2+ and Co2+ would promote the generation of oxygen vacancies (Oδ−), which could provide more CO2 (Cδ+) adsorption sites, thereby increased the selectivity of the membrane. The large aspect ratio of the ultra-thin ZnCo2O4 nanosheets showed better dispersion in the membrane. The pure gas separation performance data showed the CO2 permeability and CO2/CH4 selectivity of Pebax/ZnCo2O4 membrane were 139.10 Barrer and 15.38, respectively, when the filling amount was 0.5 wt%. Compared with pure Pebax membrane, the separation performance (permeability and selectivity) were increased with 165.67% and 75.57%, respectively. |
| first_indexed | 2024-04-11T04:50:09Z |
| format | Article |
| id | doaj.art-9b4a4e05e2094f9e95de2aefbf774266 |
| institution | Directory Open Access Journal |
| issn | 2666-9528 |
| language | English |
| last_indexed | 2024-04-11T04:50:09Z |
| publishDate | 2021-03-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Green Chemical Engineering |
| spelling | doaj.art-9b4a4e05e2094f9e95de2aefbf7742662022-12-27T04:39:42ZengKeAi Communications Co. Ltd.Green Chemical Engineering2666-95282021-03-0121132143Mixed matrix membrane containing metal oxide nanosheets for efficient CO2 separationWeifang Zhu0Fu Liu1Minmin Gou2Ruili Guo3Xueqin Li4School of Chemistry and Chemical Engineering, Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Xinjiang, Shihezi, 832003, ChinaSchool of Chemistry and Chemical Engineering, Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Xinjiang, Shihezi, 832003, ChinaSchool of Chemistry and Chemical Engineering, Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Xinjiang, Shihezi, 832003, ChinaCorresponding author.; School of Chemistry and Chemical Engineering, Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Xinjiang, Shihezi, 832003, ChinaSchool of Chemistry and Chemical Engineering, Key Laboratory for Green Process of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Xinjiang, Shihezi, 832003, ChinaThe two-dimensional (2D) nanosheet zinc cobaltate (ZnCo2O4) was added into polyether block amide (Pebax) matrix to prepare mixing matrix membrane (MMM) for separating carbon dioxide (CO2)/methane (CH4) gas mixture. The 2D porous ZnCo2O4 nanosheets were composed of chemically interconnected metal oxide nanoparticles. The ZnCo2O4 nanoparticles in the nanosheets constructed large-quantity pores of 11.78 nm and provided abundant transfer channels for gas molecule. Moreover, the synergistic effect of bimetallic Zn2+ and Co2+ would promote the generation of oxygen vacancies (Oδ−), which could provide more CO2 (Cδ+) adsorption sites, thereby increased the selectivity of the membrane. The large aspect ratio of the ultra-thin ZnCo2O4 nanosheets showed better dispersion in the membrane. The pure gas separation performance data showed the CO2 permeability and CO2/CH4 selectivity of Pebax/ZnCo2O4 membrane were 139.10 Barrer and 15.38, respectively, when the filling amount was 0.5 wt%. Compared with pure Pebax membrane, the separation performance (permeability and selectivity) were increased with 165.67% and 75.57%, respectively.http://www.sciencedirect.com/science/article/pii/S2666952820300443CO2 separationZnCo2O4 nanosheetsThe mixed matrix membranesSynergistic effectBimetallic oxide |
| spellingShingle | Weifang Zhu Fu Liu Minmin Gou Ruili Guo Xueqin Li Mixed matrix membrane containing metal oxide nanosheets for efficient CO2 separation Green Chemical Engineering CO2 separation ZnCo2O4 nanosheets The mixed matrix membranes Synergistic effect Bimetallic oxide |
| title | Mixed matrix membrane containing metal oxide nanosheets for efficient CO2 separation |
| title_full | Mixed matrix membrane containing metal oxide nanosheets for efficient CO2 separation |
| title_fullStr | Mixed matrix membrane containing metal oxide nanosheets for efficient CO2 separation |
| title_full_unstemmed | Mixed matrix membrane containing metal oxide nanosheets for efficient CO2 separation |
| title_short | Mixed matrix membrane containing metal oxide nanosheets for efficient CO2 separation |
| title_sort | mixed matrix membrane containing metal oxide nanosheets for efficient co2 separation |
| topic | CO2 separation ZnCo2O4 nanosheets The mixed matrix membranes Synergistic effect Bimetallic oxide |
| url | http://www.sciencedirect.com/science/article/pii/S2666952820300443 |
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