Abstract
Extensive efforts have been devoted to oil-water separation in recent years, especially the separation of water-in-oil emulsions. In this study, we report a superhydrophobic and superoleophilic PH-CNT (poly vinylidene fluoride-hexafluoropropylene, carbon nanotubes) membrane with highly porous structures for oil-water separation. The membrane possesses hierarchically layered micro/nano-porous structures both on the membrane surface and inside the nanofibers. The membrane effectively separated surfactant stabilized water-in-oil emulsions with micro/nano droplets, demonstrating a separation efficiency above 99.5%, while also exhibiting excellent recyclability with good chemical and mechanical stability. The PH-CNT membrane holds great potential for the purification of emulsified oil-water mixtures from industrial and domestic sources.
Original language | English |
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Article number | 115536 |
Journal | Desalination |
Volume | 526 |
DOIs | |
Publication status | Published - 15 Mar 2022 |
Externally published | Yes |
Keywords
- Antifouling
- Hierarchically porous
- Superhydrophobic
- Superoleophilic
- Water-in-oil emulsion
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- General Materials Science
- Water Science and Technology
- Mechanical Engineering