Catalytic films work well in degradation of organic matters. However, catalytic activity and stability of films are challenging factors. A nanoscale zero-valent iron (NZVI) incorporated porous PAN fiber (Fe-PAN) film was thus developed through a one-step cryogenic auxiliary electrospinning method. The Fe-PAN film overcame the problem in the traditional multistep preparation process. The excellent intrinsic properties of the polymer in the film were maintained. It exhibited high catalytic activity (> 95% conversion in just 4 min) and excellent stability and reusability, due to the synergistic interaction between PAN and NZVI. The degradation process was optimized by the Box-Behnken design, leading to the optimal condition: pH = 2.8, temperature = 56 °C, and oxidant concentration = 4.2 mmol/L. The degradation followed the 2^nd order kinetic equation and was due to the reactions by ·OH and O₂^-· radicals. This study demonstrates the great potentials of the Fe-PAN film for industrial applications.

催化膜在有机物的降解方面效果良好。然而，薄膜的催化活性和稳定性是具有挑战性的因素。因此，通过一步低温辅助静电纺丝方法开发了一种纳米级零价铁（NZVI）掺入多孔PAN纤维（Fe-PAN）薄膜。 Fe-PAN薄膜克服了传统多步制备过程中的问题。薄膜中聚合物的优异固有性能得以保持。由于PAN和NZVI之间的协同相互作用，它表现出高催化活性（在短短4分钟内转化率> 95％）和出色的稳定性和可重复使用性。通过 Box-Behnken 设计优化降解过程，得到最佳条件：pH = 2.8，温度 = 56 °C，氧化剂浓度 = 4.2 mmol/L。降解遵循二级^{动力学方程，是由于·OH 和O} ₂ ^- · 自由基的反应所致。这项研究证明了 Fe-PAN 薄膜在工业应用方面的巨大潜力。