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Polymers
Volume 17
Issue 10
10.3390/polym17101389
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Balsam-Pear-Skin-Like-Structure Polyvinylidene Fluoride/Ethylene–Vinyl Alcohol Fibrous Membrane for Highly Efficient Oil/Water Separation Through One-Step Electrospinning

by
Qijiao Jiang
,
Jinpeng Mo
,
Shaobo Han
,
Xi Liu
,
Baoliu Qu
,
Juan Xie
*,
Xianfeng Wang
and
Jing Zhao
*
College of Textile Science and Engineering, Wuyi University, Jiangmen 529020, China
*
Authors to whom correspondence should be addressed.
Polymers 2025, 17(10), 1389; https://doi.org/10.3390/polym17101389
Submission received: 22 April 2025 / Revised: 12 May 2025 / Accepted: 16 May 2025 / Published: 18 May 2025
(This article belongs to the Section Polymer Membranes and Films)
Versions Notes

Abstract

The rapid growth of industrial activities has significantly increased oil demand, leading to wastewater contamination with oil and causing severe environmental pollution. Traditional oil–water separation techniques, such as gravity separation, filtration, and chemical treatments, are hindered by low efficiency, high energy consumption, and secondary pollution. Membrane separation technology has emerged as a promising solution due to its simplicity, low energy consumption, and high efficiency. In this study, we report the fabrication of a novel polyvinylidene fluoride/ethylene–vinyl alcohol (PVDF/EVOH) nanofibrous membrane (NFM) with a unique balsam-pear-skin-like structure using a one-step electrospinning process. The membrane’s superhydrophobicity and superoleophilicity were achieved via water vapor-induced phase separation (WVIPS), by optimizing the rheological properties and mixing ratio of EVOH and PVDF precursor solutions. The resulting PVDF/EVOH (PE12-3) NFM exhibits exceptional properties, achieving separation efficiencies of 99.4% for heavy oil and 98.9% for light oil, with a heavy oil flux of 18,020 L m−2 h−1—significantly surpassing previously reported performances. Additionally, the membrane shows excellent recyclability, making it ideal for large-scale oil–water separation in wastewater treatment and environmental remediation. This one-step fabrication strategy offers an efficient and scalable approach for developing high-performance membranes to tackle oil pollution in water.
Keywords: electrospinning; balsam-pear-skin-like structure; water/oil separation; phase separation electrospinning; balsam-pear-skin-like structure; water/oil separation; phase separation

Share and Cite

MDPI and ACS Style

Jiang, Q.; Mo, J.; Han, S.; Liu, X.; Qu, B.; Xie, J.; Wang, X.; Zhao, J. Balsam-Pear-Skin-Like-Structure Polyvinylidene Fluoride/Ethylene–Vinyl Alcohol Fibrous Membrane for Highly Efficient Oil/Water Separation Through One-Step Electrospinning. Polymers 2025, 17, 1389. https://doi.org/10.3390/polym17101389

AMA Style

Jiang Q, Mo J, Han S, Liu X, Qu B, Xie J, Wang X, Zhao J. Balsam-Pear-Skin-Like-Structure Polyvinylidene Fluoride/Ethylene–Vinyl Alcohol Fibrous Membrane for Highly Efficient Oil/Water Separation Through One-Step Electrospinning. Polymers. 2025; 17(10):1389. https://doi.org/10.3390/polym17101389

Chicago/Turabian Style

Jiang, Qijiao, Jinpeng Mo, Shaobo Han, Xi Liu, Baoliu Qu, Juan Xie, Xianfeng Wang, and Jing Zhao. 2025. "Balsam-Pear-Skin-Like-Structure Polyvinylidene Fluoride/Ethylene–Vinyl Alcohol Fibrous Membrane for Highly Efficient Oil/Water Separation Through One-Step Electrospinning" Polymers 17, no. 10: 1389. https://doi.org/10.3390/polym17101389

APA Style

Jiang, Q., Mo, J., Han, S., Liu, X., Qu, B., Xie, J., Wang, X., & Zhao, J. (2025). Balsam-Pear-Skin-Like-Structure Polyvinylidene Fluoride/Ethylene–Vinyl Alcohol Fibrous Membrane for Highly Efficient Oil/Water Separation Through One-Step Electrospinning. Polymers, 17(10), 1389. https://doi.org/10.3390/polym17101389

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