ZnO Nanoneedle-Modified PEEK Fiber Felt for Improving Anti-fouling Performance of Oil/Water Separation
| Autor: | Jiashuang Luan, Jinhui Pang, Qiong Du, Jin Wang, Xuanbo Zhu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Biofouling Polymers 02 engineering and technology 010402 general chemistry 01 natural sciences Polyethylene Glycols Membrane technology Benzophenones Electrochemistry Peek General Materials Science Thermal stability Fiber Spectroscopy Nanoneedle Fouling Membrane fouling Water Surfaces and Interfaces Ketones 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Membrane Chemical engineering Zinc Oxide 0210 nano-technology |
| Zdroj: | Langmuir. 37:7449-7456 |
| ISSN: | 1520-5827 0743-7463 |
| DOI: | 10.1021/acs.langmuir.1c00838 |
| Popis: | Membrane separation has been considered to be the most effective decontamination method for oily waste water. The most significant point of membrane separation is the resistance against membrane fouling. Fabricating hierarchical architectures on the membrane surface is an available approach to improving its anti-fouling property. In this study, ZnO nanoneedles were successfully anchored onto surface-sulfonated poly(ether-ether-ketone) (PEEK) felt via UV/ozone cleaning and hydrothermal synthesis. The modified felt (PEEK-f-Z) showed much better anti-fouling properties and far higher rejection height (33 cm) than the unmodified felt (17 cm) with a separation efficiency up to 99.99%. The enhanced separation properties could be attributed to the stronger water locking capability of the hierarchical architectures on the surface. Furthermore, benefiting from the great chemical stability of PEEK substrates and ZnO nanoneedles, the as-prepared membrane exhibited admirable solvent resistance, mechanical strength, and thermal stability. As a result, PEEK-f-Z could even separate immiscible organic liquids with different polarities and collect hot water from the oil/water mixture, promising to be used under severe conditions. |
| Databáze: | OpenAIRE |
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