Superhydrophobic Surfaces with pH-Induced Switchable Wettability for Oil-Water Separation

被引：52
|
作者：
Du, Bin [1 ,2 ]
Chen, Feng [1 ]
Luo, Rubai [1 ,2 ]
Li, Huailin [1 ,2 ]
Zhou, Shisheng [1 ,2 ]
Liu, Shiyi [1 ]
Hu, Jie [1 ]
机构：
[1] Xian Univ Technol, Fac Printing Packaging Engn & Digital Media Techn, Xian 710048, Shaanxi, Peoples R China
[2] Xian Univ Technol, Shaanxi Prov Key Lab Printing & Packaging Engn, Xian 710048, Shaanxi, Peoples R China
来源：
ACS OMEGA | 2019年 / 4卷 / 15期
关键词：
COATED MEMBRANES; SMART FABRICS; COATINGS; ANTIBACTERIAL; TRANSITION; PAPER; TEMPERATURE; REPELLENT;
D O I：
10.1021/acsomega.9b02150
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The oily wastewater generated in the industrial field is adversely affecting the environment, while the current methods for oil-water separation are complex and costly. Therefore, it is significant to use low cost and environmentally friendly materials to prepare a smart responsive superhydrophobic coating for the effective separation of oil-water mixtures. In this paper, a fluorine-free copolymer with pH responsiveness was fabricated by a solution impregnation method, and it was compounded by silica nanoparticles/polydimethylsiloxane to prepare a superhydrophobic coating on the paper and cotton fabric. The prepared superhydrophobic coating remained in the superhydrophobic state after the alkali treatment, while it would be converted into the hydrophilic state after the acid treatment. Therefore, the pH-responsive superhydrophobic coating will be applied in controlled selective oil-water separation.
引用
收藏
页码：16508 / 16516
页数：9
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