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    陈硕

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    • 性别:女
    • 毕业院校:大连理工大学
    • 学位:博士
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    • 所在单位:环境学院
    • 学科:环境工程 环境科学
    • 办公地点:大连理工大学环境学院B717
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    Electro-responsive carbon membranes with reversible superhydrophobicity/superhydrophilicity switch for efficient oil/water separation

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    论文类型:期刊论文

    第一作者:Du, Lei

    通讯作者:Quan, X (reprint author), Dalian Univ Technol, Sch Environm Sci & Technol, Minist Educ, Key Lab Ind Ecol & Environm Engn, Dalian 116024, Peoples R China.

    合写作者:Quan, Xie,Fan, Xinfei,Chen, Shuo,Yu, Hongtao

    发表时间:2019-02-08

    发表刊物:SEPARATION AND PURIFICATION TECHNOLOGY

    收录刊物:SCIE、Scopus

    卷号:210

    页面范围:891-899

    ISSN号:1383-5866

    关键字:Electro-responsive; Carbon membranes; Controllable wettability; Oil/water separation

    摘要:Membrane filtration has shown great potential for the separation of oil-water mixtures. The separation of oil water mixtures is essentially an interfacial issue, and thus controllable surface wettability of membrane is extremely significant for efficient and cost-effective oil/water separation. Herein, poly-3-methylthiophene (P(3-MTH))/carbon membranes (CMs-P) with switchable surface wettability between superhydrophobicity and superhydrophilicity were designed. The CMs-P, prepared from coating P(3-MTH) on the highly porous and electrically conductive carbon nanofiber membranes, could exhibit the wettability switch by doping or dedoping the P(3-MTH) with ClO4- under electro-stimuli. The switch can be quickly achieved in less than 30 s and shows desired recyclability. Driven by gravity only, the prepared CMs-P are capable of completely separating free oil water mixture. Furthermore, the separation efficiency reaches to 99.5% for surfactant-stabled emulsions with various oil-water ratios. This work presents new insights into the study for smart gating membranes and the design of novel functional oil/water separation devices.