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Anti-Wetting Performance of an Electrospun PVDF/PVP Membrane Modified by Solvothermal Treatment in Membrane Distillation.
| Content Provider | Europe PMC |
|---|---|
| Author | Xu, Yubo Ren, Long-Fei Li, Jun Wang, Chengyi Qiu, Yangbo Shao, Jiahui He, Yiliang |
| Editor | Lee, Sangho |
| Copyright Year | 2023 |
| Abstract | Membrane distillation (MD) is attractive for water reclamation due to the fact of its unique characteristics. However, membrane wetting becomes an obstacle to its further application. In this paper, a novel hydrophobic polyvinylidene fluoride/poly(vinyl pyrrolidone) (PVDF/PVP) membrane was fabricated by electrospinning and solvothermal treatment. The electrospun membranes prepared by electrospinning showed a multilevel interconnected nanofibrous structure. Then, a solvothermal treatment introduced the micro/nanostructure to the membrane with high roughness (Ra = 598 nm), thereby the water contact angle of the membrane increased to 158.3 ± 2.2°. Owing to the superior hydrophobicity, the membrane presented high resistance to wetting in both NaCl and SDS solutions. Compared to the pristine PVDF membrane, which showed wetting with a flux decline (120 min for 0.05 mM surfactant solution treatment), the prepared membrane showed outstanding stability over 600 min, even in 0.2 mM surfactant solutions. These results confirm a simple method for anti-wetting hydrophobic membrane preparation, which presented universal significance to direct contact membrane distillation (DCMD) for industrial application. |
| Volume Number | 13 |
| PubMed Central reference number | PMC9964468 |
| Issue Number | 2 |
| PubMed reference number | 36837728 |
| Journal | Membranes (Basel) |
| e-ISSN | 20770375 |
| DOI | 10.3390/membranes13020225 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2023-02-11 |
| Access Restriction | Open |
| Rights License | Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). © 2023 by the authors. |
| Subject Keyword | membrane distillation membrane wetting electrospinning solvothermal treatment |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemical Engineering Process Chemistry and Technology Filtration and Separation |
