Facile Fabrication of Superhydrophobic Cellulose Film with Enhanced Abrasion and Corrosion Resistance for High-Flux Oil-Water Separation
- 1College of Petroleum and Chemical Engineering, Beibu Gulf University, Qinzhou 515000, China
- 2Guangxi Key Laboratory of Green Chemical Materials and Safety Technology, Beibu Gulf University, Qinzhou 515000, China
Abstract
A durable and environmentally friendly superhydrophobic cellulose-based membrane, denoted as FP/PDA@MCC/OTS (where FP, PDA, MCC, and OTS represent filter paper, polydopamine, microcrystalline cellulose, and octadecyltrichlorosilane, respectively), was fabricated via a simple PDA toughening and OTS-modified MCC coating strategy. Cellulose filter paper was first reinforced with a PDA interfacial layer to enhance mechanical stability, adhesion, and chemical resistance. Subsequently, hydrophobic MCC particles grafted with OTS were spray-deposited, forming a hierarchical fiber-particle composite structure. The resulting membrane exhibits a stable superhydrophobic surface with a water contact angle (WCA) above 150°, attributed to the synergistic effect of hierarchical roughness and low-surface-energy modification. It achieves high oil-water separation efficiency (>98%, up to 99.99%) and a high flux of up to 2.3 × 104 L·m−2·h−1 under gravity-driven conditions. Moreover, the membrane maintains excellent performance stability after repeated abrasion, ultrasonic treatment, and long-term acid/alkali immersion, with WCA remaining above 136°. The enhanced durability is attributed to robust interfacial interactions provided by PDA and stable surface anchoring of OTS-derived silane species on cellulose. This work provides a simple, scalable, and sustainable strategy for constructing robust cellulose-based membranes for efficient oily wastewater treatment under harsh conditions.
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BibTeX
@article{huang2026facile,
title = {{Facile Fabrication of Superhydrophobic Cellulose Film with Enhanced Abrasion and Corrosion Resistance for High-Flux Oil-Water Separation}},
author = {Rongjie Huang and Xinchu Lu and Honghuan Gan and Tulian Li and Zaiying Zheng and Yanzhen Yin and Daguang He},
journal = {Molecules},
year = {2026},
month = oct,
doi = {10.3390/molecules31203678},
url = {https://www.mdpi.com/1420-3049/31/20/3678},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Facile Fabrication of Superhydrophobic Cellulose Film with Enhanced Abrasion and Corrosion Resistance for High-Flux Oil-Water Separation
AU - Rongjie Huang
AU - Xinchu Lu
AU - Honghuan Gan
AU - Tulian Li
AU - Zaiying Zheng
AU - Yanzhen Yin
AU - Daguang He
PY - 2026
DA - 2026/10/01
JO - Molecules
DO - 10.3390/molecules31203678
UR - https://www.mdpi.com/1420-3049/31/20/3678
AB - A durable and environmentally friendly superhydrophobic cellulose-based membrane, denoted as FP/PDA@MCC/OTS (where FP, PDA, MCC, and OTS represent filter paper, polydopamine, microcrystalline cellulose, and octadecyltrichlorosilane, respectively), was fabricated via a simple PDA toughening and OTS-modified MCC coating strategy. Cellulose filter paper was first reinforced with a PDA interfacial layer to enhance mechanical stability, adhesion, and chemical resistance. Subsequently, hydrophobic MCC particles grafted with OTS were spray-deposited, forming a hierarchical fiber-particle composite structure. The resulting membrane exhibits a stable superhydrophobic surface with a water contact angle (WCA) above 150°, attributed to the synergistic effect of hierarchical roughness and low-surface-energy modification. It achieves high oil-water separation efficiency (>98%, up to 99.99%) and a high flux of up to 2.3 × 104 L·m−2·h−1 under gravity-driven conditions. Moreover, the membrane maintains excellent performance stability after repeated abrasion, ultrasonic treatment, and long-term acid/alkali immersion, with WCA remaining above 136°. The enhanced durability is attributed to robust interfacial interactions provided by PDA and stable surface anchoring of OTS-derived silane species on cellulose. This work provides a simple, scalable, and sustainable strategy for constructing robust cellulose-based membranes for efficient oily wastewater treatment under harsh conditions.
SN - 1420-3049
ER -