The Preparation and Study of Ethylene Glycol-Modified Graphene Oxide Membranes for Water Purification
| العنوان: | The Preparation and Study of Ethylene Glycol-Modified Graphene Oxide Membranes for Water Purification |
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| المؤلفون: | Kun Yang, Mohammadhasan Hedayati, Wang Yanxin, Ying-chen Du, Linjun Huang, Yang Zhang, Yao Wang, Meng-meng Cheng, Matt J. Kipper, Jianguo Tang |
| المصدر: | Polymers Volume 11 Issue 2 Polymers, Vol 11, Iss 2, p 188 (2019) |
| بيانات النشر: | Multidisciplinary Digital Publishing Institute, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | Thermogravimetric analysis, Materials science, Polymers and Plastics, Scanning electron microscope, ethylene glycol, 02 engineering and technology, Permeance, 010402 general chemistry, 01 natural sciences, Article, lcsh:QD241-441, chemistry.chemical_compound, X-ray photoelectron spectroscopy, lcsh:Organic chemistry, Rhodamine B, Fourier transform infrared spectroscopy, membrane, General Chemistry, 021001 nanoscience & nanotechnology, 0104 chemical sciences, Membrane, chemistry, Chemical engineering, graphene oxide, 0210 nano-technology, Ethylene glycol, water purification |
| الوصف: | In this work, graphene oxide (GO)/ethylene glycol (EG) membranes were designed by a vacuum filtration method for molecular separation and water purification. The composite membranes were characterized by scanning electron microscopy (SEM), field emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). The interlayer spacing of GO membranes (0.825 nm) and GO/EG membranes (0.634 nm) are measured by X-ray diffraction (XRD). Using the vacuum filtration method, the membrane thickness can be controlled by selecting the volume of the solution from which the membrane is prepared, to achieve high water permeance and high rejection of Rhodamine B (RhB). The membrane performance was evaluated on a dead-end filtration device. The water permeance and rejection of RhB of the membranes are 103.35 L m−2 h−1 bar−1 and 94.56% (GO), 58.17 L m−2 h−1 bar−1 and 97.13% (GO/EG), respectively. The permeability of GO/EG membrane is about 40 × 10−6 L m-1 h−1 bar−1. Compared with the GO membrane, the GO/EG membrane has better separation performance because of its proper interlayer spacing. In this study, the highest rejection of RhB (99.92%) is achieved. The GO/EG membranes have potential applications in the fields of molecular separation and water purification. |
| وصف الملف: | application/pdf |
| اللغة: | English |
| تدمد: | 2073-4360 |
| DOI: | 10.3390/polym11020188 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c990264271a967c685ceed8cce126ad2 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....c990264271a967c685ceed8cce126ad2 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20734360 |
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| DOI: | 10.3390/polym11020188 |