Water, Год журнала: 2025, Номер 17(9), С. 1309 - 1309

Опубликована: Апрель 27, 2025

Electrochemical reduction is a promising strategy for the dechlorination of halogenated organic compounds, offering advantages such as enhanced electron transfer efficiency and increased hydrogen atom concentration. It has garnered significant attention application in mitigating disinfection by-products (DBPs) drinking water, owing to its high simple operation. In this study, trichloroacetic acid (TCAA), representative DBP, was selected target contaminant. A novel composite cathode comprising metal–organic framework MIL-53(Fe)@C supported on an Nd magnet (MIL-53(Fe)@C-MAG) performance TCAA were systematically investigated. The innovative aspect study magnetic attachment MOF catalyst carbonized surface treated through carbonization, which fundamentally differs from conventional solvent-based adhesion methods. Compared bare electrode, MIL-53(Fe)@C-MAG achieved removal exceeding 96.03% within 8 h contact time. structural characterization revealed that α-Fe0 crystalline phase serves primary active center catalyst, facilitating efficient degradation. scavenger experiments involves dual pathway: direct atomic generation. modified electrode exhibited robust electrolytic over broad pH range 3–7, with showing positive correlation current density 10–50 mA/cm2. Furthermore, maintained exceptional stability, retaining more than 90% after five consecutive operational cycles. versatility system further validated by rapid various chlorinated DBPs, demonstrating applicability electrode. demonstrates advancement electrochemical technology, reliable solution purification water contaminated diverse DBPs. These results provide valuable insights into development electrolysis treatment applications.

Язык: Английский