A high flux and anti-fouling graphene oxide (GO) nanoparticles embedded in polyacrylonitrile (PAN) nanofiber microfiltration membranes (PANGMs) were fabricated through the facile electrospinning method and were characterized by water treatment applications. The synthesized GO nanoparticles and GO nanoparticles embedded in PAN nanofiber membranes were characterized by FESEM, FTIR, and EDS. SEM images showed that the PANGMs possessed randomly overlaid fibers with a network-like highly porous structure similar to the pristine PAN nanofiber membrane, while agglomeration of GO nanoparticles was observed at high GO concentration. The introduction of GO nanoparticles into the PAN polymeric matrix significantly increased the permeation flux of the resulting membrane in both dead-end and cross-flow filtration systems. A high flux recovery ratio of 96.6% and a low irreversible fouling ratio of 3.4% were obtained at 2% (wt.) GO nanoparticles. More importantly, a high flux recovery ratio of GO nanoparticles embedded in PAN nanofiber membrane was retained after 20 repeated cycles of activated sludge suspension filtration. Therefore, it can speculate that the incorporation of GO nanoparticles into the PAN nanofibers could efficiently improve the anti-fouling ability of membranes which had opened up an alternative for the preparation of high flux and anti-fouling microfiltration membranes in practical water treatment applications such as membrane bioreactors.

中文翻译：

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嵌入PAN纳米纤维微滤膜中的高通量氧化石墨烯纳米颗粒，用于水处理应用，具有改善的防污性能

通过简便的静电纺丝法制备了嵌入聚丙烯腈（PAN）纳米纤维微滤膜（PANGM）中的高通量和防污氧化石墨烯（GO）纳米颗粒，并通过水处理应用对其进行了表征。通过FESEM，FTIR和EDS对合成的GO纳米颗粒和嵌入PAN纳米纤维膜中的GO纳米颗粒进行了表征。SEM图像表明，PANMGs具有与原始PAN纳米纤维膜相似的网络状高度多孔结构的随机重叠纤维，而在高GO浓度下观察到GO纳米颗粒的团聚。将GO纳米颗粒引入PAN聚合物基体在死端和错流过滤系统中均显着提高了所得膜的渗透通量。96的高通量回收率。在2％（重量）的GO纳米颗粒上，获得了6％的不可逆结垢率和3.4％的不可逆结垢率。更重要的是，经过20次重复的活性污泥悬浮过滤循环，保留了嵌入PAN纳米纤维膜中的GO纳米颗粒的高通量回收率。因此，可以推测，将GO纳米颗粒掺入PAN纳米纤维中可以有效地改善膜的防污能力，这为在实际水处理应用中制备高通量和防污微滤膜开辟了另一种选择。膜生物反应器。经过20次重复的活性污泥悬浮过滤循环，保留了嵌入PAN纳米纤维膜中的GO纳米颗粒的高通量回收率。因此，可以推测，将GO纳米颗粒掺入PAN纳米纤维中可以有效地改善膜的防污能力，这为在实际水处理应用中制备高通量和防污微滤膜开辟了另一种选择。膜生物反应器。经过20个重复的活性污泥悬浮过滤循环后，保留了嵌入PAN纳米纤维膜中的GO纳米颗粒的高通量回收率。因此，可以推测，将GO纳米颗粒掺入PAN纳米纤维中可以有效地改善膜的防污能力，这为在实际水处理应用中制备高通量和防污微滤膜开辟了另一种选择。膜生物反应器。