Tailoring Charged Nanofiltration Membrane Based on Non-Aromatic Tris(3-aminopropyl)amine for Effective Water Softening
High-performance positively-charged nanofiltration (NF) membranes have a profound significance for water softening. In this work, a novel monomer, tris(3-aminopropyl)amine (TAEA), with one tertiary amine group and three primary amine groups, was blended with trace amounts of piperazine (PIP) in aque...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/10/10/251 |
| _version_ | 1797552751905865728 |
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| author | Pengrui Jin Michiel Robeyn Junfeng Zheng Shushan Yuan Bart Van der Bruggen |
| author_facet | Pengrui Jin Michiel Robeyn Junfeng Zheng Shushan Yuan Bart Van der Bruggen |
| author_sort | Pengrui Jin |
| collection | DOAJ |
| description | High-performance positively-charged nanofiltration (NF) membranes have a profound significance for water softening. In this work, a novel monomer, tris(3-aminopropyl)amine (TAEA), with one tertiary amine group and three primary amine groups, was blended with trace amounts of piperazine (PIP) in aqueous solution to fabricate a positively-charged NF membrane with tunable performance. As the molecular structures of TAEA and PIP are totally different, the chemical composition and structure of the polyamine selective layer could be tailored via varying the PIP content. The resulting optimal membrane exhibited an excellent water permeability of 10.2 LMH bar<sup>−1</sup> and a high rejection of MgCl<sub>2</sub> (92.4%), due to the incorporation of TAEA/PIP. In addition, this TAEA NF membrane has a superior long-term stability. Thus, this work provides a facile way to prepare a positively charged membrane with an efficient water softening ability. |
| first_indexed | 2024-03-10T16:05:36Z |
| format | Article |
| id | doaj.art-5a76401ebc89438aa46dd6fe029a002e |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-10T16:05:36Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-5a76401ebc89438aa46dd6fe029a002e2023-11-20T14:53:51ZengMDPI AGMembranes2077-03752020-09-01101025110.3390/membranes10100251Tailoring Charged Nanofiltration Membrane Based on Non-Aromatic Tris(3-aminopropyl)amine for Effective Water SofteningPengrui Jin0Michiel Robeyn1Junfeng Zheng2Shushan Yuan3Bart Van der Bruggen4Department of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Heverlee, BelgiumDepartment of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Heverlee, BelgiumDepartment of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Heverlee, BelgiumSchool of Environmental Science & Engineering, Huazhong University of Science and Technology, Wuhan 430074, ChinaDepartment of Chemical Engineering, KU Leuven, Celestijnenlaan 200F, B-3001 Heverlee, BelgiumHigh-performance positively-charged nanofiltration (NF) membranes have a profound significance for water softening. In this work, a novel monomer, tris(3-aminopropyl)amine (TAEA), with one tertiary amine group and three primary amine groups, was blended with trace amounts of piperazine (PIP) in aqueous solution to fabricate a positively-charged NF membrane with tunable performance. As the molecular structures of TAEA and PIP are totally different, the chemical composition and structure of the polyamine selective layer could be tailored via varying the PIP content. The resulting optimal membrane exhibited an excellent water permeability of 10.2 LMH bar<sup>−1</sup> and a high rejection of MgCl<sub>2</sub> (92.4%), due to the incorporation of TAEA/PIP. In addition, this TAEA NF membrane has a superior long-term stability. Thus, this work provides a facile way to prepare a positively charged membrane with an efficient water softening ability.https://www.mdpi.com/2077-0375/10/10/251tris(3-aminopropyl)aminenanofiltration membranepositively charged membranewater softening |
| spellingShingle | Pengrui Jin Michiel Robeyn Junfeng Zheng Shushan Yuan Bart Van der Bruggen Tailoring Charged Nanofiltration Membrane Based on Non-Aromatic Tris(3-aminopropyl)amine for Effective Water Softening Membranes tris(3-aminopropyl)amine nanofiltration membrane positively charged membrane water softening |
| title | Tailoring Charged Nanofiltration Membrane Based on Non-Aromatic Tris(3-aminopropyl)amine for Effective Water Softening |
| title_full | Tailoring Charged Nanofiltration Membrane Based on Non-Aromatic Tris(3-aminopropyl)amine for Effective Water Softening |
| title_fullStr | Tailoring Charged Nanofiltration Membrane Based on Non-Aromatic Tris(3-aminopropyl)amine for Effective Water Softening |
| title_full_unstemmed | Tailoring Charged Nanofiltration Membrane Based on Non-Aromatic Tris(3-aminopropyl)amine for Effective Water Softening |
| title_short | Tailoring Charged Nanofiltration Membrane Based on Non-Aromatic Tris(3-aminopropyl)amine for Effective Water Softening |
| title_sort | tailoring charged nanofiltration membrane based on non aromatic tris 3 aminopropyl amine for effective water softening |
| topic | tris(3-aminopropyl)amine nanofiltration membrane positively charged membrane water softening |
| url | https://www.mdpi.com/2077-0375/10/10/251 |
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