Chem. J. Chinese Universities ›› 2024, Vol. 45 ›› Issue (5): 20240061.doi: 10.7503/cjcu20240061

• Polymer Chemistry • Previous Articles     Next Articles

Preparation and Oil-water Separation Performance of Superhydrophobic Porous Organic Polymers

GAO Changyuan1, XIANG Tingting1, CHEN Shixin1, SUN Qiqi1, WANG Jiale1, ZHENG Guiyue2, ZHAO Ziyi1, LIU Ziyu1, CUI Bo2, YAN Zhuojun2, BU Naishun1(), WU Yue3()   

  1. 1.School of Environmental Science
    2.College of Chemistry,Liaoning University,Shenyang 110036,China
    3.Liaoning Geological Exploration and Mining Group,Shenyang 110032,China
  • Received:2024-02-02 Online:2024-05-10 Published:2024-04-08
  • Contact: BU Naishun E-mail:bunaishun@lnu.edu.cn;792153056@qq.com
  • Supported by:
    the National Science Foundation of China(31972522);the Liaoning Provincial Natural Science Foundation, China(2021-MS-149);the Liaoning Revitalization Talents Program, China(XLYC2007032);the Project of Liaoning Runzhong Water Supply Co., Ltd., China, the Open Research Fund of Key Laboratory of Wetland Ecology and Environment Research in Cold Regions of Heilongjiang Province, China and the College Students’ Innovative Entrepreneurial Training Plan Program of Liaoning University, China

Abstract:

A superhydrophobic porous organic polymer denominated as LNU-40 was synthesized via a Suzuki coupling reaction of 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-NN-bis[4-(4,4,5,5-tetramethyl-1,3,2- dioxaborolan-2-yl)phenyl]aniline, 3,6-dibromocarbazole, tetrakis(triphenylphosphine)-palladium, and NN- dimethyl-2-(piperazin-1-yl)benzamide oxalate. LNU-40 possesses a specific surface area of 32 m2/g and manifests thermal stability. Dissolution or decomposition does not occur when it is dispersed in commonly encountered organic solvents. LNU-40 is characterized by a low surface energy and a water contact angle of 152.4°, demonstrating excellent resistance to acidic and alkaline environments. This property enables the fabrication of a superhydrophobic surface with outstanding self-cleaning capabilities. The superhydrophobic flexible fabric prepared with LNU-40 achieves a separation efficiency of over 90% for organic solvents and exhibits an oil adsorption capacity ranging from 3 to 8 times of its own mass. The superior adsorption and separation performance make it suitable for the treatment of oily wastewater containing organic solvents in industries such as petrochemicals, food, and pharmaceuticals.

Key words: Superhydrophobic porous organic polymer, Conjugated structure, Oil-water separation

CLC Number: 

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