Antifouling properties of Cu(tpa)@GO/PES composite membranes and selective dye rejection
| Autor: | Thollwana Andretta Makhetha, Richard M. Moutloali |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Nanocomposite
Materials science Cationic polymerization Filtration and Separation 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry 0104 chemical sciences Congo red body regions Contact angle chemistry.chemical_compound Membrane chemistry Chemical engineering Methyl orange General Materials Science Physical and Theoretical Chemistry 0210 nano-technology human activities Phase inversion Methylene blue |
| Zdroj: | Journal of Membrane Science. 554:195-210 |
| ISSN: | 0376-7388 |
| DOI: | 10.1016/j.memsci.2018.03.003 |
| Popis: | Two nanocomposite types of Cu(tpa) MOFs supported on graphene oxide (Cu(tpa)@GO) were prepared by varying the ratio of MOF to GO. These composites were used to produce a series of Cu(tpa)@GO polyethersulfone (PES) composite membranes through a phase inversion method. The nanocomposites and the membranes were all characterized using a variety of physicochemical techniques such as contact angle, SEM, TEM, etc. The composite membranes exhibited high hydrophilicity and increased pure water flux relative to pristine PES and GO/PES membranes. Furthermore, the Cu(tpa)@GO/PES composite membranes presented high antifouling properties with almost 98% of flux recovery ratio compared to 43% and 78% obtained for pristine PES and GO/PES membrane respectively. Finally, these Cu(tpa)@GO/PES membranes exhibited selective anionic dye rejection of > 80% and > 50% for Congo Red and Methyl Orange respectively as compared to that observed for the cationic dye Methylene Blue at |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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