Ultra-Permeable Dual-Mechanism-Driven Graphene Oxide Framework Membranes for Precision Ion Separations
Two-dimensional graphene oxide (GO) membranes are gaining popularity as a promising means to address global water scarcity. However, current GO membranes fail to sufficiently exclude angstrom-sized ions from solution. Herein, a de novo “posterior” interfacial polymerization (p-IP) strategy is report...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/DP180103861 http://hdl.handle.net/20.500.11937/95989 |
| _version_ | 1848766066940968960 |
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| author | Guo, J. Zhang, Y. Yang, F. Mamba, B.B. Ma, J. Shao, L. Liu, Shaomin |
| author_facet | Guo, J. Zhang, Y. Yang, F. Mamba, B.B. Ma, J. Shao, L. Liu, Shaomin |
| author_sort | Guo, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Two-dimensional graphene oxide (GO) membranes are gaining popularity as a promising means to address global water scarcity. However, current GO membranes fail to sufficiently exclude angstrom-sized ions from solution. Herein, a de novo “posterior” interfacial polymerization (p-IP) strategy is reported to construct a tailor-made polyamide (PA) network in situ in an ultrathin GO membrane to strengthen size exclusion while imparting a positively charged membrane surface to repel metal ions. The electrostatic repulsion toward metal ions, coupled with the reinforced size exclusion, synergistically drives the high-efficiency metal ion separation through the synthesized positively charged GO framework (PC-GOF) membrane. This dual-mechanism-driven PC-GOF membrane exhibits superior metal ion rejection, anti-fouling ability, good operational stability, and ultra-high permeance (five times that of pristine GO membranes), enabling a sound step towards a sustainable water-energy-food nexus. |
| first_indexed | 2025-11-14T11:45:15Z |
| format | Journal Article |
| id | curtin-20.500.11937-95989 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | eng |
| last_indexed | 2025-11-14T11:45:15Z |
| publishDate | 2023 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-959892024-10-09T07:24:12Z Ultra-Permeable Dual-Mechanism-Driven Graphene Oxide Framework Membranes for Precision Ion Separations Guo, J. Zhang, Y. Yang, F. Mamba, B.B. Ma, J. Shao, L. Liu, Shaomin Graphene Membranes Positively Charged Surface Water Treatment “Posterior” Interfacial Polymerization Two-dimensional graphene oxide (GO) membranes are gaining popularity as a promising means to address global water scarcity. However, current GO membranes fail to sufficiently exclude angstrom-sized ions from solution. Herein, a de novo “posterior” interfacial polymerization (p-IP) strategy is reported to construct a tailor-made polyamide (PA) network in situ in an ultrathin GO membrane to strengthen size exclusion while imparting a positively charged membrane surface to repel metal ions. The electrostatic repulsion toward metal ions, coupled with the reinforced size exclusion, synergistically drives the high-efficiency metal ion separation through the synthesized positively charged GO framework (PC-GOF) membrane. This dual-mechanism-driven PC-GOF membrane exhibits superior metal ion rejection, anti-fouling ability, good operational stability, and ultra-high permeance (five times that of pristine GO membranes), enabling a sound step towards a sustainable water-energy-food nexus. 2023 Journal Article http://hdl.handle.net/20.500.11937/95989 10.1002/anie.202302931 eng http://purl.org/au-research/grants/arc/DP180103861 http://purl.org/au-research/grants/arc/IH170100009 fulltext |
| spellingShingle | Graphene Membranes Positively Charged Surface Water Treatment “Posterior” Interfacial Polymerization Guo, J. Zhang, Y. Yang, F. Mamba, B.B. Ma, J. Shao, L. Liu, Shaomin Ultra-Permeable Dual-Mechanism-Driven Graphene Oxide Framework Membranes for Precision Ion Separations |
| title | Ultra-Permeable Dual-Mechanism-Driven Graphene Oxide Framework Membranes for Precision Ion Separations |
| title_full | Ultra-Permeable Dual-Mechanism-Driven Graphene Oxide Framework Membranes for Precision Ion Separations |
| title_fullStr | Ultra-Permeable Dual-Mechanism-Driven Graphene Oxide Framework Membranes for Precision Ion Separations |
| title_full_unstemmed | Ultra-Permeable Dual-Mechanism-Driven Graphene Oxide Framework Membranes for Precision Ion Separations |
| title_short | Ultra-Permeable Dual-Mechanism-Driven Graphene Oxide Framework Membranes for Precision Ion Separations |
| title_sort | ultra-permeable dual-mechanism-driven graphene oxide framework membranes for precision ion separations |
| topic | Graphene Membranes Positively Charged Surface Water Treatment “Posterior” Interfacial Polymerization |
| url | http://purl.org/au-research/grants/arc/DP180103861 http://purl.org/au-research/grants/arc/DP180103861 http://hdl.handle.net/20.500.11937/95989 |