Chen Mingxing, Wei Lianying, Zhang Wei, Wang Chun, Xiao Changfa
School of Textile and Garment, Hebei Province Technology Innovation Center of Textile and Garment, Hebei Key Laboratory of Flexible Functional Materials, Hebei University of Science and Technology No. 26, Yuxiang Road Shijiazhuang 050018 China
School of Textiles and Fashion, Shanghai University of Engineering Science No. 333, Longteng Road Shanghai 201620 China.
RSC Adv. 2021 Jun 24;11(36):22287-22296. doi: 10.1039/d1ra03707b. eCollection 2021 Jun 21.
A novel tubular poly(-phenylene isophthalamide) (PMIA) nanofiber membrane decorated with Ag nanoparticles was fabricated a simple method in this study. First, Ag@RGO nanocomposites were prepared a mussel-inspired method. Then, a tubular PMIA/Ag@RGO nanocomposite nanofiber membrane (T-PMIA/Ag@RGO NNM) was prepared by adding Ag@RGO nanocomposites to the electrospining solution. In particular, hollow braided rope was used as the collector and reinforcement during the electrospinning process. T-PMIA/Ag@RGO NNM exhibits an excellent catalytic efficiency as most of the Ag nanoparticles were exposed to the surface of the nanofiber and because of the fast mass transfer in continuous catalysis process. T-PMIA/Ag@RGO NNM can be easily recycled from the reaction solution and exhibits good reusability. The degradation rate for 4-NP could still remain 98.7% after ten consecutive cycles. The results might advance the real applications of the nanofiber membrane in the continuous catalysis process.
本研究采用一种简单的方法制备了一种装饰有银纳米颗粒的新型管状聚间苯二甲酰间苯二胺（PMIA）纳米纤维膜。首先，通过一种受贻贝启发的方法制备了Ag@RGO纳米复合材料。然后，通过将Ag@RGO纳米复合材料添加到静电纺丝溶液中，制备了管状PMIA/Ag@RGO纳米复合纳米纤维膜（T-PMIA/Ag@RGO NNM）。特别地，在静电纺丝过程中使用空心编织绳作为收集器和增强材料。T-PMIA/Ag@RGO NNM表现出优异的催化效率，这是因为大多数银纳米颗粒暴露在纳米纤维表面，并且在连续催化过程中传质速度快。T-PMIA/Ag@RGO NNM可以很容易地从反应溶液中回收，并表现出良好的可重复使用性。连续十个循环后，对4-NP的降解率仍可保持在98.7%。这些结果可能会推动纳米纤维膜在连续催化过程中的实际应用。
