酶促咖啡酸制备超疏水棉织物及其油水分离应用

doi:10.11896/cldb.22100129

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Abstract The oil spill accident at sea and the discharge of industrial waste water have caused increasingly serious harm to the environment. Therefore, cotton fabric has been super hydrophobic modified to make it a potential material for oil water separation. Laccase, caffeic acid and Fe²⁺ were used to construct a micron scale rough structure on the surface of cotton fabric, and then the composite structure of super hydrophobic modified cotton fabric was prepared by modifying the cotton fabric with low surface energy substance hexadecyl trimethoxysilane (HDTMS). The surface morphology, chemical composition, durability, self-cleaning performance and oil-water separation performance of the modified fabric were tested. The results showed that when the concentration of caffeic acid was 3 mg/L, the concentration of ferrous sulfate was 12 mg/L, the concentration of laccase was 0.75 U/mL, and the concentration of HDTMS was 1%, the modified cotton fabric had good super hydrophobic properties. The static contact angle was 164.6°, and the rolling angle was 6.75°. The modified cotton fabric shows stable super hydrophobic perfor-mance in the tests of friction resistance, acid and alkali resistance, and water washing resistance, and shows good self-cleaning performance. After 15 oil-water separation cycles, the separation efficiency can be maintained at more than 96%, which has great potential in the application of self-cleaning clothing and oil-water separation.

Key words： super hydrophobic caffeic acid laccase hexadecyltrimethoxysilane cotton fabric oil-water separation

Published: 10 February 2024 Online: 2024-02-19

CLC number:

TB34

Fund:National Natural Science Foundation of China (52003108), China Postdoctoral Science Foundation Funded Project (2022M721359), and the Fundamental Research Funds for the Central Universities (JUSRP121027).

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	Articles by authors
	ZHU Fei
	YANG Xue
	SU Jing
	WANG Hongbo

Cite this article:

ZHU Fei,YANG Xue,SU Jing, et al. Preparation of Super Hydrophobic Cotton Fabric Based on Caffeic Acid Catalyzed by Enzyme and Its Oil-Water Separation Application[J]. Materials Reports, 2024, 38(3): 22100129-7.

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http://www.mater-rep.com/EN/10.11896/cldb.22100129 OR http://www.mater-rep.com/EN/Y2024/V38/I3/22100129

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