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首页> 外文期刊>RSC Advances >Anti-biofouling effect of a thin film nanocomposite membrane with a functionalized-carbon-nanotube-blended polymeric support for the pressure-retarded osmosis process
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Anti-biofouling effect of a thin film nanocomposite membrane with a functionalized-carbon-nanotube-blended polymeric support for the pressure-retarded osmosis process

机译：薄膜纳米复合膜用官能化 - 碳 - 纳米管混合聚合物载体对压力延迟渗透过程的抗生物污垢效应

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摘要

In this study, the anti-biofouling effect of a thin film nanocomposite (TFN) membrane with a functionalized-carbon-nanotube-blended polymeric support layer was analyzed to determine the applicability of this membrane for the pressure-retarded osmosis (PRO) process. The anti-biofouling property of TFN membranes for the PRO process was characterized by SEM, FTIR, and AFM, as well as contact angle measurements and zeta potential analysis of the bottom side of the support layer. The anti-biofouling effect of the fabricated membrane for the PRO process was analyzed by bacterial attachment tests on the bottom surface of the support layer and biofouling tests in a cross-flow operation system in the PRO mode (AL-DS). The TFN membrane with 0.5 wt% fCNTs exhibited enhanced anti-biofouling properties of the bottom surface of the support layer compared to the bare TFC membrane due to the low roughness, high negative surface charge, and hydrophilicity. Compared to the bare TFC membrane, the support layer of the fCNT0.5-TFN membrane exhibited a 35% decrease in bacterial attachment. In a laboratory-scale biofouling test, the water flux of the fCNT0.5-TFN membrane was similar to 10% less than that of the bare TFC membrane in the PRO mode.
机译：在本研究中，分析了薄膜纳米复合材料（TFN）膜的抗生物污染效应具有官能化 - 碳 - 纳米管共混聚合物支撑层，以确定该膜对压力迟钝的渗透（Pro）过程的适用性。 Pro工艺的TFN膜的抗生物污染性能特征在于SEM，FTIR和AFM，以及支撑层底侧的接触角测量和Zeta电位分析。通过在Pro模式（AL-DS）的横流操作系统的底表面上的细菌附着试验和在Pro模式（AL-DS）中的横流操作系统的底表面上的抗生物污垢效果进行分析。具有0.5wt％FCNT的TFN膜具有与粗糙度，高阴性表面电荷和亲水性低的裸TFC膜相比增强了支撑层的底表面的抗生物膨胀性能。与裸TFC膜相比，FCNT0.5-TFN膜的支撑层表现出细菌附着的35％降低。在实验室规模的生物污垢测试中，FCNT0.5-TFN膜的水通量与Pro模式中的裸TFC膜的水通量相似。

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  • 来源
    《RSC Advances》 |2020年第10期|共7页
  • 作者

    Kim Yeji; Yang Eunmok; Park Hosik; Choi Heechul;

  • 作者单位

    Gwangju Inst Sci &

    Technol Sch Earth Sci &

    Environm Engn 123 Cheomdangwagi Ro Gwangiu 61005 South Korea;

    Gwangju Inst Sci &

    Technol Sch Earth Sci &

    Environm Engn 123 Cheomdangwagi Ro Gwangiu 61005 South Korea;

    Korea Res Inst Chem Technol Ctr Membranes Adv Mat Div Daejeon 34114 South Korea;

    Gwangju Inst Sci &

    Technol Sch Earth Sci &

    Environm Engn 123 Cheomdangwagi Ro Gwangiu 61005 South Korea;

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  • 正文语种 eng
  • 中图分类 化学;
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