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- Publisher Website: 10.1016/j.jcis.2019.01.033
- Scopus: eid_2-s2.0-85060175411
- PMID: 30660795
- WOS: WOS:000460710800041
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Article: Tuning roughness features of thin film composite polyamide membranes for simultaneously enhanced permeability, selectivity and anti-fouling performance
Title | Tuning roughness features of thin film composite polyamide membranes for simultaneously enhanced permeability, selectivity and anti-fouling performance |
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Authors | |
Keywords | Roughness TFC polyamide membrane Permeability Selectivity Anti-fouling |
Issue Date | 2019 |
Publisher | Academic Press. The Journal's web site is located at http://www.elsevier.com/locate/jcis |
Citation | Journal of Colloid and Interface Science, 2019, v. 540, p. 382-388 How to Cite? |
Abstract | Thin film composite (TFC) polyamide membranes set the golden standard for reverse osmosis technology, but tuning their permeability and selectivity remains a major challenge because of the inherent permeability-selectivity trade-off. Creating nano-sized voids within the polyamide rejection layer can tune the membrane roughness and increase its effective filtration area to improve the water permeability. Here we prepare nano-foamed polyamide rejection layers by adding sodium bicarbonate into the aqueous solution of amine monomers. We show a systematic evolution of the roughness structure of polyamide membranes, with increasingly leaf-like and belt-like features appearing under enhanced nano-foaming conditions. These nano-foamed features can result in remarkable improvements in both water permeability and salt rejection and reduce membrane fouling propensity at the same time. Our study paves a new research direction for designing future generation of desalination membranes, which holds vast potential to reduce the cost and energy consumption of desalination while achieving improved product water quality. |
Persistent Identifier | http://hdl.handle.net/10722/272856 |
ISSN | 2023 Impact Factor: 9.4 2023 SCImago Journal Rankings: 1.760 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Ma, X | - |
dc.contributor.author | Yang, Z | - |
dc.contributor.author | Yao, Z | - |
dc.contributor.author | Guo, H | - |
dc.contributor.author | Xu, Z | - |
dc.contributor.author | Tang, CY | - |
dc.date.accessioned | 2019-08-06T09:17:52Z | - |
dc.date.available | 2019-08-06T09:17:52Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Journal of Colloid and Interface Science, 2019, v. 540, p. 382-388 | - |
dc.identifier.issn | 0021-9797 | - |
dc.identifier.uri | http://hdl.handle.net/10722/272856 | - |
dc.description.abstract | Thin film composite (TFC) polyamide membranes set the golden standard for reverse osmosis technology, but tuning their permeability and selectivity remains a major challenge because of the inherent permeability-selectivity trade-off. Creating nano-sized voids within the polyamide rejection layer can tune the membrane roughness and increase its effective filtration area to improve the water permeability. Here we prepare nano-foamed polyamide rejection layers by adding sodium bicarbonate into the aqueous solution of amine monomers. We show a systematic evolution of the roughness structure of polyamide membranes, with increasingly leaf-like and belt-like features appearing under enhanced nano-foaming conditions. These nano-foamed features can result in remarkable improvements in both water permeability and salt rejection and reduce membrane fouling propensity at the same time. Our study paves a new research direction for designing future generation of desalination membranes, which holds vast potential to reduce the cost and energy consumption of desalination while achieving improved product water quality. | - |
dc.language | eng | - |
dc.publisher | Academic Press. The Journal's web site is located at http://www.elsevier.com/locate/jcis | - |
dc.relation.ispartof | Journal of Colloid and Interface Science | - |
dc.subject | Roughness | - |
dc.subject | TFC polyamide membrane | - |
dc.subject | Permeability | - |
dc.subject | Selectivity | - |
dc.subject | Anti-fouling | - |
dc.title | Tuning roughness features of thin film composite polyamide membranes for simultaneously enhanced permeability, selectivity and anti-fouling performance | - |
dc.type | Article | - |
dc.identifier.email | Yang, Z: zheyang8@hku.hk | - |
dc.identifier.email | Guo, H: guohao7@hku.hk | - |
dc.identifier.email | Tang, CY: tangc@hku.hk | - |
dc.identifier.authority | Tang, CY=rp01765 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.jcis.2019.01.033 | - |
dc.identifier.pmid | 30660795 | - |
dc.identifier.scopus | eid_2-s2.0-85060175411 | - |
dc.identifier.hkuros | 299798 | - |
dc.identifier.volume | 540 | - |
dc.identifier.spage | 382 | - |
dc.identifier.epage | 388 | - |
dc.identifier.isi | WOS:000460710800041 | - |
dc.publisher.place | United States | - |
dc.identifier.issnl | 0021-9797 | - |