Xie Jiatao, Hu Shengkang, Wei Mengyuan, Xie Shenghui
School of Mechanical and Automotive Engineering, South China University of Technology, Guangzhou 510640, China.
Guangdong Provincial Key Laboratory of New Energy Materials Service Safety, Shenzhen Engineering Laboratory for Advanced Technology of Ceramic, Shenzhen Key Laboratory of Special Functional Materials, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, China.
Materials (Basel). 2025 Feb 20;18(5):930. doi: 10.3390/ma18050930.
Fe-based metallic glass (MG) exhibits excellent performance as a heterogeneous catalyst in degradation but is rarely used as a working electrode in electro-Fenton (EF) systems. We used FeSiB MG as the working electrode to investigate the effect of the EF process on the degradation efficiency of p-nitrophenol (p-NP). The EF system had the highest catalytic efficiency (the reaction rate was 3.4 times that of chemical degradation) at a voltage of -1 V (vs. SCE) and showed 95.6% degradation of p-NP within 30 min. The electrode voltage accelerated the generation of hydroxyl radicals (·OH) in the system, thus promoting pollutant degradation. In addition, the FeSiB MG cathode demonstrated good structural stability and reusability after 10 cycles. FeSiB MG ribbons can serve as a suitable cathode material and provide potential optimization solutions for the degradation of organic pollutants.
铁基金属玻璃（MG）在降解过程中作为一种非均相催化剂表现出优异的性能，但在电芬顿（EF）系统中很少用作工作电极。我们使用FeSiB MG作为工作电极来研究EF过程对对硝基苯酚（p-NP）降解效率的影响。EF系统在-1 V（相对于饱和甘汞电极，SCE）的电压下具有最高的催化效率（反应速率是化学降解的3.4倍），并在30分钟内实现了95.6%的p-NP降解。电极电压加速了系统中羟基自由基（·OH）的产生，从而促进了污染物的降解。此外，FeSiB MG阴极在10次循环后表现出良好的结构稳定性和可重复使用性。FeSiB MG带材可以作为一种合适的阴极材料，并为有机污染物的降解提供潜在的优化解决方案。
