Water disinfection would result in unintended formation of halogenated disinfection by-products (DBPs) which pose potential harm to human health. In present work, Fe₇₈Si₉B₁₃ amorphous ribbons (Fe-Si-B^AR) showed excellent catalytic degradation performance towards an aromatic DBP, 3,5-dichlorosalicylic acid (3,5-DiClSA) by Fenton-like reaction. The catalytic degradation performances of Fe-Si-B^AR, Fe₇₈Si₉B₁₃ crystalline ribbons (Fe-Si-B^CR) and iron powders towards 3,5-DiClSA were compared, and Fe-Si-B^AR (0.0166 min⁻¹) showed the fastest degradation rate. The faster surface mobility of Fe-Si-B^AR, which made it easy for Fe²⁺ to be oxidized by H₂O₂, facilitated the degradation process. High-valent iron of Fe^IV could be generated which accounted for degradation of 3,5-DiClSA. The Fe-Si-B^AR also showed better and better catalytic performance in 10 reuse cycles. Besides, the cytotoxicity tests indicated that the overall toxicity level of 3,5-DiClSA was declined by 88.1 % after degradation by Fe-Si-B^AR. Our results showed that Fe-Si-B^AR is a promising catalyst for the degradation of aromatic DBPs.

水消毒将导致意外形成卤化消毒副产物（DBP），对人体健康构成潜在危害。在目前的工作中，Fe ₇₈ Si ₉ B ₁₃非晶态碳带（Fe-Si-B ^AR）通过类Fenton反应对芳族DBP，3,5-二氯水杨酸（3,5-DiClSA）表现出优异的催化降解性能。的Fe-Si-B的催化降解性能^AR，铁₇₈的Si ₉乙_13个结晶色带（的Fe-Si-B ^CR）并朝向3,5- DiClSA铁粉进行比较，和Fe-Si系乙^AR（0.0166分钟^-1）表现出最快的降解速度。Fe-Si- ^BAR的更快的表面迁移率使Fe ²⁺易于被H ₂ O ₂氧化，从而促进了降解过程。可能生成高价的Fe ^IV铁，导致3,5-DiClSA降解。Fe-Si-B ^AR在10个重复使用循环中也表现出越来越好的催化性能。另外，细胞毒性试验表明，3,5- DiClSA的总体毒性水平通过88.1％的Fe-Si系乙降解后下降^AR。我们的结果表明，Fe-Si-B ^AR是降解芳族DBP的有前途的催化剂。