Work

Degradation Efficiency and Mechanism Exploration of an Fe78Si9B13 Metallic Glass Cathode in the Electro-Fenton Degradation of p-NP

Year: 2025

Type: article

Abstract: 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 Fe78Si9B13 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 Fe78Si9B13 MG cathode demonstrated good structural stability and reusability after 10 cycles. Fe78Si9B13 MG ribbons can serve as a suitable cathode material and provide potential optimization solutions for the degradation of organic pollutants.

Source: Materials

DOI: 10.3390/ma18050930

Authors: Jiatao Xie, Shengkang Hu, Mengyuan Wei, Shenghui Xie

Institutions: South China University of Technology, Shenzhen University

Language: English

Topic: Advanced oxidation water treatment

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: gold

Estimated APC paid: $3,137