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| Fabrication of Hydrophobic Cellulose Filter Paper for Oil-water Separation |
| Received:May 20, 2025 Revised:July 28, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.12.013 |
| Key Words:cellulose filter paper hydrophobic oil-water separation dopamine-fluoropolymer copolymer immersion method |
| Fund Project:国家自然科学基金项目（22278071，32401680）。 |
| Author Name | Affiliation | Postcode | | LUO Gai* | Fujian Key Laboratory of Disposable Sanitary Products, Fujian Hengan International Group Co., Ltd., Quanzhou, Fujian Province, 362261 | 362261 | | WENG Wenwei | Fujian Key Laboratory of Disposable Sanitary Products, Fujian Hengan International Group Co., Ltd., Quanzhou, Fujian Province, 362261 | 362261 | | WU Xiaobiao* | Fujian Key Laboratory of Disposable Sanitary Products, Fujian Hengan International Group Co., Ltd., Quanzhou, Fujian Province, 362261 | 362261 | | LU Shengchang | College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350108 | 350108 | | CHEN Lihui | College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350108 | 350108 | | WU Hui* | College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, Fujian Province, 350108 | 350108 |
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| Abstract:The hydrophobic cellulose filter paper modified with a dopamine-fluoropolymer copolymer P(DA-co-FA) were developed via a facile dip-coating strategy for efficient oil-water separation. The result showed that the low-surface-energy fluorinated groups had been introduced， and the modified filter paper exhibited a water contact angle of up to 140°， remarkable pH stability， and superior hydrophobicity. Under gravity-driven separation， the modified filter paper achieved over 96% separation efficiency for n-hexane/water mixtures and maintained 93% efficiency after 20 cycles. This work presented a scalable approach to fabricate cellulose-based hydrophobic materials， demonstrating significant potential for applications in oil spill remediation， self-cleaning surfaces， and sustainable separation technologies. |
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