Development of catalytic zero-valent iron incorporated PAN catalytic film for efficient degradation of organic matters.

Autor: Yang, Yi, Lin, Haowen, Long, Yuxi, Mei, Ying, Chen, J. Paul
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Zdroj: NPJ Clean Water; 5/13/2024, Vol. 7 Issue 1, p1-10, 10p
Abstrakt: 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 2nd 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. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index
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