Highly improved permeation property of thin-film-composite polyamide membrane for water desalination
| Autor: | Yan Hao, Yanxia Zhang, Guo Min, Guoyuan Pan, Zhang Yang, Yiqun Liu, Xu Jian, Xiaopei Miao, Hongwei Shi, Sen Li |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
Polymers and Plastics Organic Chemistry 02 engineering and technology Permeation 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Interfacial polymerization 0104 chemical sciences Contact angle chemistry.chemical_compound Membrane chemistry Thin-film composite membrane Polyamide Materials Chemistry Polysulfone Composite material 0210 nano-technology Reverse osmosis |
| Zdroj: | Journal of Polymer Research. 24 |
| ISSN: | 1572-8935 1022-9760 |
| DOI: | 10.1007/s10965-016-1167-2 |
| Popis: | Thin-film-composite (TFC) polyamide membranes with flux-enhancement were prepared by the interfacial polymerization of m-phenylenediamine with trimesoyl chloride on porous polysulfone support. The addition of 1,3-propanesultone (PS) in the organic phase is used to influence the interfacial polymerization process and the morphology of polyamide layer to improve water flux. FTIR, 1H NMR and UV spectra were performed to investigate the effect of PS on interfacial polymerization process. In order to study the forming mechanism of TFC membrane, the resulting TFC membranes were characterized by SEM, AFM, ATR-FTIR, XPS, as well as static contact angle. In comparison with conventional polyamide membrane, the TFC membranes fabricated with PS as the additive exhibit much more improved water flux without NaCl rejection decreasing. Notably, the optimal TFC membrane with 0.04% (wt/v) PS as the additive in organic phase shows the best performance with a NaCl rejection of 99.39% and a water flux of 48.57 L m−2 h−1 at 1.55 MPa, which has increased 41% compared to the value of the conventional TFC membrane. |
| Databáze: | OpenAIRE |
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