دورية أكاديمية
High-flux nanofiltration membrane with modified highly dispersed MOF particles as nano filler
| العنوان: | High-flux nanofiltration membrane with modified highly dispersed MOF particles as nano filler |
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| المؤلفون: | Shujuan Xiao, Xiaohui Lu, Hui Liu, Jiantao Gu, Shouwu Yu, Xiaoyao Tan |
| المصدر: | Water Science and Technology, Vol 86, Iss 10, Pp 2642-2657 (2022) |
| بيانات النشر: | IWA Publishing, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Environmental technology. Sanitary engineering |
| مصطلحات موضوعية: | cau-1 mof modification, nanofiltration membrane, surface modification, thin-film nanocomposite (tfn), Environmental technology. Sanitary engineering, TD1-1066 |
| الوصف: | The synthesis of optimized thin film nanocomposite (TFN) membrane with no or few defects is an efficacious method which can improve nanofiltration performance. However, poor dispersion of fillers in the organic phase and wrong compatibility between fillers and polymerizate are still a serious problem. In this study, the particle size of metal organic framework (MOF), aluminum-based metal-organic frameworks (CAU-1) was modulated and for the first time, dodecyl aldehyde was used to modify the surface hydrophobicity of CAU-1, which improved the dispersibility and inhibited the aggregation in the trimesoyl chloride (TMC)/n-hexane solution; later CAU-1 and modified CAU-1 were incorporated into the polyamide (PA) selective layer to synthesize TFN membrane by interfacial polymerization (IP). The particle size modulation and modification of the CAU-1 were demonstrated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared (FTIR) characterization. The characterization showed that PA selective layer was synthesized on the top layer of polysulfone (PSF) substrate. The pure water flux of the TFN membrane was increased to 79.89 ± 1.24 L·m−2·h−1·bar−1 compared to the original thin film composite (TFC) membrane, which was due to the polymerization of 100 nm modified CAU-1 on the PA layer to form a new water molecular channel, thus increasing the water flux by about 70%. HIGHLIGHTS CAU-1 nanoparticles were modified with dodecyl aldehyde.; CAU-1 and modified CAU-1 nanoparticles were used to prepare TFN membranes.; The TFN membranes exhibit high water flux and high salt rejection.; |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 0273-1223 1996-9732 |
| العلاقة: | http://wst.iwaponline.com/content/86/10/2642Test; https://doaj.org/toc/0273-1223Test; https://doaj.org/toc/1996-9732Test |
| DOI: | 10.2166/wst.2022.357 |
| الوصول الحر: | https://doaj.org/article/7632dc6dcd1646ba8e6433d19fe127eaTest |
| رقم الانضمام: | edsdoj.7632dc6dcd1646ba8e6433d19fe127ea |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 02731223 19969732 |
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| DOI: | 10.2166/wst.2022.357 |