Constructing zwitterionic surface of nanofiltration membrane for high flux and antifouling performance
| Autor: | Chun-Chun Ye, Quan-Fu An, Yao-Shen Guo, Feng-Yang Zhao, Yi-Fang Mi, Xiao-Dan Weng |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
biology
Chemistry Inorganic chemistry Filtration and Separation 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry Chloride Interfacial polymerization 0104 chemical sciences Biofouling Membrane Permeability (electromagnetism) medicine biology.protein General Materials Science Water treatment Nanofiltration Physical and Theoretical Chemistry Bovine serum albumin 0210 nano-technology medicine.drug |
| Zdroj: | Journal of Membrane Science. 541:29-38 |
| ISSN: | 0376-7388 |
| DOI: | 10.1016/j.memsci.2017.06.091 |
| Popis: | Antifouling performance of nanofiltration membrane is critical in applications like water treatment. In this study, surface zwitterionization was conducted by 1, 3-propanesultone ring-opening directly on the nanofiltration membrane prepared by interfacial polymerization of 3,3′-diamino-N-methyldipropylamine and 1, 3, 5-benzenetricarboxylic chloride. The zwitterionic structures improve the hydrophilicity of nanofiltration membrane, thus increase the water permeability and antifouling performance. The zwitterionic membrane have a 72 L m−2 h−1 water flux at the optimize condition, which was about 2.4 times that of the pristine membrane without zwitterionization, and with a 89% rejection of MgCl2. Meanwhile, the zwitterionic membrane will have better antifouling performance to protein and polysaccharose. The flux recovery ratio of bovine serum albumin, sodium alginate and lysozyme were all above 95%. The prepared zwitterionic membrane presents prominent high water flux and fouling-resistance performance, indicating it's promising application potential in organic wastewater treatment. |
| Databáze: | OpenAIRE |
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