Design and preparation of ZnS superhydrophobic coating with self-healing property and oil-water separation function on stainless steel mesh surface

• Published in: Colloids and surfaces. A, Physicochemical and engineering aspects Vol. 666; p. 131378
• Main Authors: Wang, Kang, Yu, Sirong, Li, Wei, Song, Yuanji, Gong, Pu, Zhang, Mingshan, Li, Huaisen, Sun, Daijun, Yang, Xizhen, Wang, Xuewu
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 05.06.2023
• Subjects: Oil-water separation; Self-healing performance; Superhydrophobicity; ZnS nanorods; Self-healing performance; Oil-water separation; ZnS nanorods; Superhydrophobicity
• ISSN: 0927-7757; 1873-4359
• DOI: 10.1016/j.colsurfa.2023.131378

In order to prepare stainless steel mesh (SSM) with special wettability, long service life and suitable for oil-water separation research, micro-nano rough structure was constructed on the surface of SSM by the synergistic method of electrodeposition and solvothermal method. Finally, ZnS superhydrophobic coating (ZnS@SSM) with special wettability was successfully prepared on the surface of SSM by low-energy modification method. The wettability, microstructure and composition of the sample surface were analyzed by contact angle meter, field emission scanning electron microscope, X-ray diffractometer and Fourier infrared spectrometer. The results showed that the surface of ZnS@SSM was superhydrophobic, and the water contact angle was as high as 158°. The oil-water separation efficiency and reusability of the sample were characterized by an oil-water separation device, and the oil-water separation efficiency was 97.8%. The self-healing performance of ZnS@SSM was experimented by oxygen plasma etching, and it exhibited excellent durability performance. [Display omitted]