Fabrication of polyamide hollow fiber nanofiltration membrane with intensified positive surface charge density via a secondary interfacial polymerization
In this work, a positively charged hollow fiber nanofiltration (NF) membrane based on twice interfacial polymerization (IP) reactions was developed for water soften and heavy metal ions removal. The first IP reaction was conducted on the polyethersulfone (PES) hollow fiber substrate using a mixture...
| Main Authors: | , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/169306 |
| _version_ | 1811677917209427968 |
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| author | Yin, Yurong Zhao, Yali Li, Can Wang, Rong |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Yin, Yurong Zhao, Yali Li, Can Wang, Rong |
| author_sort | Yin, Yurong |
| collection | NTU |
| description | In this work, a positively charged hollow fiber nanofiltration (NF) membrane based on twice interfacial polymerization (IP) reactions was developed for water soften and heavy metal ions removal. The first IP reaction was conducted on the polyethersulfone (PES) hollow fiber substrate using a mixture of branched polyethyleneimine (PEI) and piperazine (PIP) as the aqueous phase monomers in the aqueous phase reacting with trimesoyl chloride (TMC) in the cyclohexane solution. Then, a secondary IP reaction was performed between tris(2-aminoethyl) amine (TAEA) solution and the residual acyl chloride groups on the membrane to increase the positive charge density on the membrane surface. Consequently, a NF membrane with intensified positive surface charge density was successfully fabricated. The optimized membranes achieved a high rejection of MgCl2 of 97.6% while maintaining a pure water permeability (PWP) of 16.0 L m−2 h−1 bar−1. Meanwhile, the membranes exhibit high rejection values of 99.8% to Cu2+ and 99.7% to Zn2+, respectively. In conclusion, this work provides a facile way to prepare a positively charged membrane for efficient water softening and metal ions removal. |
| first_indexed | 2024-10-01T02:44:59Z |
| format | Journal Article |
| id | ntu-10356/169306 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T02:44:59Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1693062023-07-12T15:34:37Z Fabrication of polyamide hollow fiber nanofiltration membrane with intensified positive surface charge density via a secondary interfacial polymerization Yin, Yurong Zhao, Yali Li, Can Wang, Rong School of Civil and Environmental Engineering Nanyang Environment and Water Research Institute Singapore Membrane Technology Centre Engineering::Civil engineering Positively Charged NF Membrane Secondary IP Process In this work, a positively charged hollow fiber nanofiltration (NF) membrane based on twice interfacial polymerization (IP) reactions was developed for water soften and heavy metal ions removal. The first IP reaction was conducted on the polyethersulfone (PES) hollow fiber substrate using a mixture of branched polyethyleneimine (PEI) and piperazine (PIP) as the aqueous phase monomers in the aqueous phase reacting with trimesoyl chloride (TMC) in the cyclohexane solution. Then, a secondary IP reaction was performed between tris(2-aminoethyl) amine (TAEA) solution and the residual acyl chloride groups on the membrane to increase the positive charge density on the membrane surface. Consequently, a NF membrane with intensified positive surface charge density was successfully fabricated. The optimized membranes achieved a high rejection of MgCl2 of 97.6% while maintaining a pure water permeability (PWP) of 16.0 L m−2 h−1 bar−1. Meanwhile, the membranes exhibit high rejection values of 99.8% to Cu2+ and 99.7% to Zn2+, respectively. In conclusion, this work provides a facile way to prepare a positively charged membrane for efficient water softening and metal ions removal. Submitted/Accepted version 2023-07-11T08:54:40Z 2023-07-11T08:54:40Z 2023 Journal Article Yin, Y., Zhao, Y., Li, C. & Wang, R. (2023). Fabrication of polyamide hollow fiber nanofiltration membrane with intensified positive surface charge density via a secondary interfacial polymerization. Journal of Membrane Science, 682, 121778-. https://dx.doi.org/10.1016/j.memsci.2023.121778 0376-7388 https://hdl.handle.net/10356/169306 10.1016/j.memsci.2023.121778 2-s2.0-85160794041 682 121778 en Journal of Membrane Science © 2023 Elsevier B.V. All rights reserved. This paper was published in Journal of Membrane Science and is made available with permission of 2023 Elsevier B.V. application/pdf |
| spellingShingle | Engineering::Civil engineering Positively Charged NF Membrane Secondary IP Process Yin, Yurong Zhao, Yali Li, Can Wang, Rong Fabrication of polyamide hollow fiber nanofiltration membrane with intensified positive surface charge density via a secondary interfacial polymerization |
| title | Fabrication of polyamide hollow fiber nanofiltration membrane with intensified positive surface charge density via a secondary interfacial polymerization |
| title_full | Fabrication of polyamide hollow fiber nanofiltration membrane with intensified positive surface charge density via a secondary interfacial polymerization |
| title_fullStr | Fabrication of polyamide hollow fiber nanofiltration membrane with intensified positive surface charge density via a secondary interfacial polymerization |
| title_full_unstemmed | Fabrication of polyamide hollow fiber nanofiltration membrane with intensified positive surface charge density via a secondary interfacial polymerization |
| title_short | Fabrication of polyamide hollow fiber nanofiltration membrane with intensified positive surface charge density via a secondary interfacial polymerization |
| title_sort | fabrication of polyamide hollow fiber nanofiltration membrane with intensified positive surface charge density via a secondary interfacial polymerization |
| topic | Engineering::Civil engineering Positively Charged NF Membrane Secondary IP Process |
| url | https://hdl.handle.net/10356/169306 |
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