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Facile fabrication of durable superhydrophobic fabrics by silicon polyurethane membrane for oil/water separation

Lookup NU author(s): Dr Peng Liu, Dr David XieORCiD



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Nowadays, oil contamination has become a major reason for water pollution, and presents a global environmental challenge. Although many efforts have been devoted to the fabrication of oil/water separation materials, their practical applications are still hindered by their weak durability, poor chemical tolerance, environmental resistance, and potential negative impact on health and the environment. To overcome these drawbacks, this work offers a facile method to fabricate the eco-friendly and durable oil/water separation membrane fabrics by alkaline hydrolysis and silicon polyurethane coating. The X-ray photoelectron spectroscopy, scanning electron microscopy, and atomic force microscopy results demonstrate that silicon polyurethane membrane could be coated onto the surface of hydrolyzed polyester fabric and form a micro-/nano-scaled hierarchical structure. Based on this, the modified fabric could have a stable superhydrophobic property with a water contact angle higher than 150°, even after repeated washing and mechanical abrasion 800 times, as well as chemical corrosion. Moreover, the modified fabrics show excellent oil/water separation efficiency of up to 99% for various types of oil–water mixture. Therefore, this durable, eco-friendly and cost-efficient superhydrophobic fabric has great potential in large-scale oil/water separation.

Publication metadata

Author(s): Mao T, Xiao R, Liu P, Chen J, Luo J, Luo S, Xie F, Zheng C

Publication type: Article

Publication status: Published

Journal: Chinese Journal of Chemical Engineering

Year: 2023

Volume: 55

Pages: 73-83

Print publication date: 01/03/2023

Online publication date: 21/05/2022

Acceptance date: 16/05/2022

Date deposited: 22/09/2022

ISSN (print): 1004-9541

ISSN (electronic): 2210-321X

Publisher: Elsevier


DOI: 10.1016/j.cjche.2022.05.003


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Funder referenceFunder name
National Natural Science Foundation of China