Preparation and properties of hollow fibre nanofiltration membrane with continuous coffee-ring structure
| العنوان: | Preparation and properties of hollow fibre nanofiltration membrane with continuous coffee-ring structure |
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| المؤلفون: | Xufeng Xu, Qian Zhang, Bosheng Lv, Ruiyuan Yang, Xiuzhen Wei, Yi Chen, Lu Liu, Jinyuan Chen |
| المصدر: | Frontiers of Chemical Science and Engineering. 15:351-362 |
| بيانات النشر: | Springer Science and Business Media LLC, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Materials science, Scanning electron microscope, General Chemical Engineering, Chemical structure, Infrared spectroscopy, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Interfacial polymerization, 0104 chemical sciences, Membrane technology, Membrane, Chemical engineering, Polyamide, Nanofiltration, 0210 nano-technology |
| الوصف: | Polyamide (PA) hollow fibre composite nanofiltration (NF) membranes with a coffee-ring structure and beneficial properties were prepared by adding graphene oxide (GO) into the interfacial polymerization process. The presentation of the coffee-ring structure was attributed to the heterogeneous, finely dispersed multiphase reaction system and the “coffee-stain” effect of the GO solution. When the piperazine concentration was 0.4 wt-%, the trimesoyl chloride concentration was 0.3 wt-%, and the GO concentration was 0.025 wt-%, the prepared NF membranes showed the best separation properties. The permeate flux was 76 L·m−2·h−1, and the rejection rate for MgSO4 was 98.6% at 0.4 MPa. Scanning electron microscopy, atomic force microscopy, and attenuated total reflectance-Fourier transform infrared spectroscopy were used to characterize the chemical structure and morphology of the PA/GO NF membrane. The results showed that GO was successfully entrapped into the PA functional layer. Under neutral operating conditions, the PA/GO membrane showed typical negatively charged NF membrane separation characteristics, and the rejection rate decreased in the order of Na2SO4 > MgSO4 > MgCl2 > NaCl. The PA/GO NF membrane showed better antifouling performance than the PA membrane. |
| تدمد: | 2095-0187 2095-0179 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::60565bdf97519147f3df81ab51f7a72d https://doi.org/10.1007/s11705-020-1943-8 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........60565bdf97519147f3df81ab51f7a72d |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Springer Verlag. | تدمد: | 20950187 20950179 |
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