Facile Fabrication of Magnetic, Durable and Superhydrophobic Cotton for Efficient Oil/Water Separation
文献类型： 外文期刊
作者： Yu, Mingguang 1 ; Wang, Qing 2 ; Yang, Wenxin 1 ; Xu, Yonghang 1 ; Zhang, Min 1 ; Deng, Qianjun 1 ; Liu, Guang 3 ;
作者机构： 1.Foshan Univ, Sch Mat Sci & Energy Engn, Foshan 528000, Peoples R China
2.South China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China
3.Guangdong Acad Agr Sci, Guangdong Key Lab Agr Prod Proc, Sericultural & Agri Food Res Inst, Key Lab Funct Foods,Minist Agr & Rural Affairs, Guangzhou 510610, Guangdong, Peoples R China
关键词： cotton fabrics; magnetic; superhydrophobic; oil; water separation; durability
期刊名称：POLYMERS （ 影响因子：4.329； 五年影响因子：4.493 ）
ISSN：
年卷期： 2019 年 11 卷 3 期
页码：
收录情况： SCI
摘要： In this paper, we present a facile and efficient strategy for the fabrication of magnetic, durable, and superhydrophobic cotton for oil/water separation. The superhydrophobic cotton functionalized with Fe3O4 magnetic nanoparticles was prepared via the in situ coprecipitation of Fe2+/Fe3+ ions under ammonia solution on cotton fabrics using polyvinylpyrrolidone (PVP) as a coupling agent and hydrophobic treatment with tridecafluorooctyl triethoxysilane (FAS) in sequence. The as-prepared cotton demonstrated excellent superhydrophobicity with a water contact angle of 155.6 degrees +/- 1.2 degrees and good magnetic responsiveness. Under the control of the external magnetic field, the cotton fabrics could be easily controlled to absorb the oil from water as oil absorbents, showing high oil/water separation efficiency, even in hot water. Moreover, the cotton demonstrated remarkable mechanical durable properties, being strongly friction-resistant against sandpaper and finger wipe, while maintaining its water repellency. This study developed a novel and efficient strategy for the construction of magnetic, durable, and superhydrophobic biomass-based adsorbent for oil/water separation, which can be easily scaled up for practical oil absorption.
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