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Article: Fabrication of a novel and green thin-film composite membrane containing nanovoids for water purification
Title | Fabrication of a novel and green thin-film composite membrane containing nanovoids for water purification |
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Authors | |
Keywords | Thin-film composite membrane Polyamide rejection layer Copper nanoparticles Nanovoids Water permeability |
Issue Date | 2019 |
Publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memsci |
Citation | Journal of Membrane Science, 2019, v. 570-571, p. 314-321 How to Cite? |
Abstract | Thin film nanocomposite (TFN) membranes, which incorporate nanomaterials in a crosslinked polyamide matrix, often show enhanced separation properties thanks to the additional pores or channels offered by these materials. In this study, we deliberately created nanovoids in the dense polyamide rejection layer by acid-etching copper nanoparticles (CuNPs) contained in a TFN membrane. Systematic membrane characterization confirmed the complete removal of CuNPs using 1% HNO3, which formed nanovoids of approximately 10 nm in size. The water flux of the etched membrane TFC-Cu50X was nearly quadrupled compared to that of the CuNPs loaded membrane TFC-Cu50. This significantly improved water flux can be ascribed to the enhanced water transport through these nano-sized voids. The nanovoids-enhanced approach provides new possibilities for synthesizing high performance membranes. |
Persistent Identifier | http://hdl.handle.net/10722/272862 |
ISSN | 2023 Impact Factor: 8.4 2023 SCImago Journal Rankings: 1.848 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Yang, Z | - |
dc.contributor.author | Huang, X | - |
dc.contributor.author | Ma, X | - |
dc.contributor.author | Zhou, ZW | - |
dc.contributor.author | Guo, H | - |
dc.contributor.author | Yao, Z | - |
dc.contributor.author | Feng, SP | - |
dc.contributor.author | Tang, CY | - |
dc.date.accessioned | 2019-08-06T09:17:58Z | - |
dc.date.available | 2019-08-06T09:17:58Z | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Journal of Membrane Science, 2019, v. 570-571, p. 314-321 | - |
dc.identifier.issn | 0376-7388 | - |
dc.identifier.uri | http://hdl.handle.net/10722/272862 | - |
dc.description.abstract | Thin film nanocomposite (TFN) membranes, which incorporate nanomaterials in a crosslinked polyamide matrix, often show enhanced separation properties thanks to the additional pores or channels offered by these materials. In this study, we deliberately created nanovoids in the dense polyamide rejection layer by acid-etching copper nanoparticles (CuNPs) contained in a TFN membrane. Systematic membrane characterization confirmed the complete removal of CuNPs using 1% HNO3, which formed nanovoids of approximately 10 nm in size. The water flux of the etched membrane TFC-Cu50X was nearly quadrupled compared to that of the CuNPs loaded membrane TFC-Cu50. This significantly improved water flux can be ascribed to the enhanced water transport through these nano-sized voids. The nanovoids-enhanced approach provides new possibilities for synthesizing high performance membranes. | - |
dc.language | eng | - |
dc.publisher | Elsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/memsci | - |
dc.relation.ispartof | Journal of Membrane Science | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Thin-film composite membrane | - |
dc.subject | Polyamide rejection layer | - |
dc.subject | Copper nanoparticles | - |
dc.subject | Nanovoids | - |
dc.subject | Water permeability | - |
dc.title | Fabrication of a novel and green thin-film composite membrane containing nanovoids for water purification | - |
dc.type | Article | - |
dc.identifier.email | Yang, Z: zheyang8@hku.hk | - |
dc.identifier.email | Guo, H: guohao7@hku.hk | - |
dc.identifier.email | Feng, SP: hpfeng@hku.hk | - |
dc.identifier.email | Tang, CY: tangc@hku.hk | - |
dc.identifier.authority | Guo, H=rp02772 | - |
dc.identifier.authority | Feng, SP=rp01533 | - |
dc.identifier.authority | Tang, CY=rp01765 | - |
dc.description.nature | postprint | - |
dc.identifier.doi | 10.1016/j.memsci.2018.10.057 | - |
dc.identifier.scopus | eid_2-s2.0-85055749621 | - |
dc.identifier.hkuros | 299805 | - |
dc.identifier.volume | 570-571 | - |
dc.identifier.spage | 314 | - |
dc.identifier.epage | 321 | - |
dc.identifier.isi | WOS:000450325700034 | - |
dc.publisher.place | Netherlands | - |
dc.identifier.issnl | 0376-7388 | - |