Contact
    Start Publications Superhydrophobic sponge with the rod-spherical microstructure ...
    ←  Publication Finder
    Attension

    Superhydrophobic sponge with the rod-spherical microstructure via palygorskite-catalyzed hydrolysis and condensation of vinyltriethoxysilane for oil-water separation

    Year: 2020

    Journal: Appl. Clay Sci., Volume 199, DEC 1

    Authors: Zhang, Ruilong; Zhou, Zhiping; Ge, Wenna; Wang, Yi; Yin, Xifeng; Zhang, Liming; Yang, Wenming; Dai, Jiangdong

    Organizations: National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [22008092, 21822807, 51803080]; Natural Science Foundation of Jiangsu ProvinceNatural Science Foundation of Jiangsu Province [BK20170532]; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2017 M620194]; Jiangsu Planned Projects for Postdoctoral Research Funds [1701023A]; Natural Science Foundation Jiangsu Higher Education Institutions [17KJB430011]; Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYCX19_1592]; Science and Technology Planning Social Development Project of Zhenjiang City [SH2020003, SH2018015, SH2019013]

    Keywords: Palygorskite; Catalysis; Superhydrophobic; Sponge; Rod-spherical microstructure; Oil-water separation

    In this study, the unmodified PAL could catalyze the hydrolysis and condensation of vinyltriethoxysilane (VTES) to construct a novel superhydrophobic sponge possessing the rod-spherical microstructure. After the hydrophobic modification of hexadecyltrimethoxysilane (C16TMS), a superhydrophobic sponge with a rod-spherical microstructure (C16TMS/PAL-VSiO2/MS) was prepared, and characterized by SEM, TEM, FTIR, XPS, stress strain, contact angle. And it showed a novel structure and excellent properties, such as outstanding elasticity (32.8 kPa), superior hydrophobic property (water contact angle of 154.1 degrees, and water sliding angle of 4.2o). In the process of oil-water separation, C16TMS/PAL-VSiO2/MS exhibited the optimal adsorption capacity of 128 +/- 3 g/g of dichloroethane and the excellent separation efficiency exceeding 99.0%. It was noteworthy that the adsorption capacity and WCA did not drop significantly after 20 cycles of repeated adsorption. C16TMS/PALVSiO(2)/MS would be a promising material in oil-water separation, because of the excellent separation efficiency and the simple, economical, and easily scalable preparation method.
    View publication