Robust and self-healing superhydrophobic cotton fabric via UV induced click chemistry for oil/water separation
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It is often difficult to guarantee the service life of fabric-based superhydrophobic materials that possess self-cleaning and oil–water separation capabilities. To extend practical use, a robust, self-healing superhydrophobic and superoleophilic cotton fabric was successfully prepared by simple impregnation and UV irradiation. The obtained superhydrophobic cotton had a contact angle of 152.4°. The as-prepared fabric showed excellent stability and remained superhydrophobic when soaked in corrosive liquids. Moreover, the prepared fabric can be used as an absorbent to separate the small amount of oil from the oil–water mixture and could be an oil/water separator by a simple device with the separation efficiency over 96%. More importantly, after 200 cycles of severe abrasion, the as-prepared fabric can retain superhydrophobicity and exhibit excellent self-healing property by simple heating treatment. With high oil–water separation efficiency and strong stability, the fabric prepared by this environmental-friendly method may contribute to the development of durable superhydrophobic materials.
KeywordsSelf-healing Superhydrophobic Cotton fabric UV induced click chemistry Robust Oil/water separation
The research was supported by National Science Foundation of China (NSFC) (No. 51403032) and Putian Science and Technology Bureau (CN) (2018G1001).
- Huang Z, Gurney RS, Wang T, Liu D (2018) Environmentally durable superhydrophobic surfaces with robust photocatalytic self-cleaning and self-healing properties prepared via versatile film deposition methods. J Colloid Interface Sci 527:107–116. https://doi.org/10.1016/j.jcis.2018.05.004 CrossRefPubMedGoogle Scholar
- Jiang L, Donghua Univ SKLMCF, Polymer M (2005) Super-hydrophobic surfaces: from natural to artificial. In: Proceedings of 2005 international conference on advanced fibers and polymer materialsGoogle Scholar
- Kim S, Hwang HJ, Cho H, Choi D, Hwang W (2018) Repeatable replication method with liquid infiltration to fabricate robust, flexible, and transparent, anti-reflective superhydrophobic polymer films on a large scale. Chem Eng J 350:225–232. https://doi.org/10.1016/j.cej.2018.05.184 CrossRefGoogle Scholar
- Li J, Yan L, Tang X, Feng H, Hu D, Zha F (2016b) Robust superhydrophobic fabric bag filled with polyurethane sponges used for vacuum-assisted continuous and ultrafast absorption and collection of oils from water. Adv Mater Interfaces. https://doi.org/10.1002/admi.201500770 CrossRefPubMedPubMedCentralGoogle Scholar
- Qiu W, Jia W, Xu D, Liu B, Shen L (2016) Progress in fabrication of superhydrophobic materials and their application in oil–water separation. J Mater Sci Eng 34:508–512Google Scholar
- Wen N, Miao X, Yang X, Long M, Deng W, Zhou Q, Deng W (2018) An alternative fabrication of under oil superhydrophobic or underwater superoleophobic stainless steel meshes for oil–water separation: originating from one-step vapor deposition of polydimethylsiloxane. Sep Purif Technol 204:116–126. https://doi.org/10.1016/j.seppur.2018.04.059 CrossRefGoogle Scholar