层层自组装法制备超疏水/超亲油棉织物及其油水分离性能

doi:10.11896/cldb.20060194

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Abstract Water resources polluted by oil seriously affect human health and ecosystem. In order to obtain materials with excellent oil-water separation performance, assembling nanometre silver thin layer on the surface of cotton fabric by layer self-assembly method, and modified it with dodecyl mercaptan, then cotton fabric with superhydrophobic-superoleophilic performance is prepared. The microstructure, surface chemical composition, wettability and oil-water separation performance of superhydrophobic- superlipophilic cotton fabric are characterized by scanning electron microscope, X-ray diffractometer, contact angle tester and separation efficiency. The modified cotton fabric is loaded up with dense nano silver layers, the water contact angle is up to 160° and the oil contact angle is 0° on the surface, showing excellent superhydrophobic-superlipophilic performance. Nano-silver is firmly attached to the surface of cotton fabric, showing fine wear resistance and corrosion resistance. The oil-water separation test shows that the cotton fabric not only have a good recycling ability,but also having separation efficiency of different types of oil and water mixtures, and separation efficiency is over 88%. In addition, the cotton fabric can not only separate light oil on water and water sinking oil from water, but also can separate the mixture formed by three phases of light oil-water-sinking oil.

Key words： cotton fabric superhydrophobic superoleophilic nano silver oil-water separation

Published: 01 July 2021

CLC number:	TG174.451
	O647.5

Fund:Gansu Provincial Key Talents Project in 2020, Gansu Longyuan Youth Innovation and Entrepreneurship Talent (team) Project (2020RCXM196), Industy Support Project of Colleges in Gansu Provice(2020C-30), Innovation Ability Improvement Foundation of the Higher Education Institutions of Gansu Province(2019B-180,2020A-149), National Innovation and Entrepreneurship Training Program for College Students(202011807007), Youth Science and Technology Innovation Foundation of Lanzhou Institute of Technology(2020KJ-12,2020KJ-14),Funded by the “Qizhi” Talent Cultivation Project of Lanzhou Institute of Technology(2019QZ-05,2020QZ-03).

About author:: Fusheng Yang graduated from Northwest Normal University in June 2013, obtained the master of science degree, and has been teaching in Lanzhou Institute of Technology since October 2014, mainly engaged in the research of functional materials.
Wu Yang, professor and doctoral supervisor in Northwest Normal University. He graduated from Lanzhou Institute of Chemical Physics of Chinese Academy of Sciences in July 1998. Obtained doctor of science, and Postdoctoral in Max Planck Institute for High Molecular research (Mainz), Germany. Mainly engaged in the preparation, characterization and application research of nanomaterial and functional materials. He has published more than 100 SCI papers, applied for more than 8 invention patents, and published 2 monographs and 1 textbook.
Zhenyu Zhang, doctor of engineering, professor.In May 2007, he joined the State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences as a postdoctoral resear-cher.Mainly engaging in the preparation and application research of wear-resistant materials.He has presided over and participated in more than 10 projects funded by National Natural Fund, publishing more than 30 SCI papers, and was invited to be the rewriter of Tribology International, Suface & Coatings Technology.

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	YANG Fusheng
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Cite this article:

YANG Fusheng,ZHANG Zhenyu,LI Yunqing, et al. Fabrication of Superhydrophobic-Superlipophilic Cotton Fabric by Layer Self-assembly Method and Its Oil-water Separation Performance[J]. Materials Reports, 2021, 35(12): 12190-12195.

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http://www.mater-rep.com/EN/10.11896/cldb.20060194 OR http://www.mater-rep.com/EN/Y2021/V35/I12/12190

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