High water permeating thin film composite polyamide nanofiltration membranes showing thermal responsive gating properties
| Autor: | Lixin Xue, Yaoyao Zhu, Wu Qian, Sun Zhijuan, Dong Fengkai, Tang Yilian, Congjie Gao |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Process Chemistry and Technology Radical polymerization 02 engineering and technology 010501 environmental sciences Permeation Methacrylate 01 natural sciences chemistry.chemical_compound Membrane Monomer 020401 chemical engineering Chemical engineering chemistry Thin-film composite membrane Polyamide Nanofiltration 0204 chemical engineering Safety Risk Reliability and Quality Waste Management and Disposal 0105 earth and related environmental sciences Biotechnology |
| Zdroj: | Journal of Water Process Engineering. 36:101355 |
| ISSN: | 2214-7144 |
| DOI: | 10.1016/j.jwpe.2020.101355 |
| Popis: | High water permeating thin film composite (TFC) polyamide (PA) nanofiltration (NF) membranes were prepared by grafting 2-(Dimethylamino)ethyl methacrylate (DMAEMA) monomers onto their surfaces through a free radical polymerization process. Grafted PDMAEMA layer increased the water permeation of TFC-PA NF membranes up to 2.6 times without trading off their salt rejection capability. The anti-fouling performance of the NF membranes was improved by further surface zwitterionization processes involving 1,3-propane sulfone(1,3-PS). Thermal-responsive gating property for water and salt permeation was observed in these high flux NF membranes and found to be useful in trapping and releasing protein molecules via temperature variations. These high flux NF membranes with thermal-responsive gating property may find applications in material enrichment, drug delivery and water treatments. |
| Databáze: | OpenAIRE |
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