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首页> 外文期刊>New Journal of Chemistry >A superhydrophobic poly(lactic acid) electrospun nanofibrous membrane surface-functionalized with TiO2 nanoparticles and methyltrichlorosilane for oil/water separation and dye adsorption
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A superhydrophobic poly(lactic acid) electrospun nanofibrous membrane surface-functionalized with TiO2 nanoparticles and methyltrichlorosilane for oil/water separation and dye adsorption

机译：用TiO2纳米粒子和甲基三氯硅烷表面官能化的超疏水聚（乳酸）电纺纳米纤维用于油/水分离和染料吸附

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摘要

A functionalized nanofiber membrane with high oil/water separation efficiency and methylene blue adsorption has been successfully fabricated by electrospinning and a surface modification approach. The substrate poly(lactic acid) (PLA) nanofiber film was firstly coated with titanium dioxide (TiO2) nanoparticles (NPs) by the sol-gel method. Then, polysiloxane formed by the hydrolysis and polycondensation of methyltrichlorosilane (MTS) was deposited on the modified nanofiber surface to increase the surface roughness and reduce the surface energy. The PLA nanofibrous membrane functionalized with TiO2 NPs and MTS exhibited excellent superhydrophobicity (water contact angle = 157.4 +/- 0.9 degrees), high permeation flux (2297.6 +/- 51.6 L m(-2) h(-1)) and ideal filtration efficiency (98.4 +/- 1.0%). Moreover, the functionalized nanofibrous membrane could also achieve rapid and recyclable adsorption of toxic dyes such as methylene blue in aqueous solution. It provides a new prospect to facilely fabricate nanofibrous membrane materials to achieve the dual functions of oil/water separation and removal of toxic dyes with high efficiency.
机译：通过静电纺丝和表面改性方法成功地制造了具有高油/水分离效率和亚甲基蓝吸附的官能化的纳米纤维膜。通过溶胶 - 凝胶法首先用二氧化钛（TiO 2）纳米颗粒（NPS）涂覆衬底聚（乳酸）纳米纤维膜。然后，通过水解和甲基三氯硅烷（MTS）的缩聚形成的聚硅氧烷在改性的纳米纤维表面上沉积，以增加表面粗糙度并降低表面能。用TiO2 NPS和MTS官能化的PLA纳米纤维膜表现出优异的超疏水性（水接触角= 157.4 +/- 0.9度），高渗透通量（2297.6 +/- 51.6L m（-2）H（-1））和理想过滤效率（98.4 +/- 1.0％）。此外，官能化的纳米纤维膜也可以在水溶液中实现有毒染料的快速和可回收的吸附如亚甲基蓝。它提供了一种新的前景，以易于制造纳面纤维膜材料，以实现油/水分离的双重功能，并高效除去有毒染料。

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  • 来源
    《New Journal of Chemistry》 |2019年第39期|共9页
  • 作者

    Zhou Zixuan; Liu Lejing; Yuan Weizhong;

  • 作者单位

    Tongji Univ Sch Mat Sci &

    Engn Sch Med Shanghai Peoples Hosp 10 Shanghai 201804 Peoples R China;

    Tongji Univ Sch Mat Sci &

    Engn Sch Med Shanghai Peoples Hosp 10 Shanghai 201804 Peoples R China;

    Tongji Univ Sch Mat Sci &

    Engn Sch Med Shanghai Peoples Hosp 10 Shanghai 201804 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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