Lizheng Yang , Jiayang Lin , Jiayang Mo, Yingxin Wang, Chenhao Liang, Yanbo Chen, Qilun Huang, Dongying Hu, Xiurong Li
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引用次数: 0
Abstract
Heterogeneous electro-Fenton is a promising wastewater treatment technology that can efficiently degrade organic pollutants without secondary pollution. However, challenges persist in developing streamlined synthesis methods for high-performance, cost-effective cathode catalysts. Herein, hierarchical iron phosphides@hard carbon composites with porous heterostructures were engineered through a synergistic approach involving high-temperature calcination, chemical activation, and iron phosphide doping. It features effective doping of FeP nanoparticles, a relatively high specific surface area, and abundant catalytically active sites. The optimal catalyst achieved 95.4 % phenol degradation within 180 min under neutral conditions, coupled with 61.4 % chemical oxygen demand (COD) removal. Notably, the system maintained 90.0 % phenol removal efficiency over 20 recycling times, far exceeding some reported cathodes. A key advancement lies in the catalyst's broad pH adaptability (pH 3–9), effectively eliminating the stringent pH limitations (typically pH 2–4) inherent to traditional homogeneous electro-Fenton systems. The superior performance of the composite catalyst demonstrates the viability of biomass-derived hard carbon for wastewater treatment and offers a novel reference for its application in the realm of electro-Fenton degradation.
期刊介绍:
The Journal of Cleaner Production is an international, transdisciplinary journal that addresses and discusses theoretical and practical Cleaner Production, Environmental, and Sustainability issues. It aims to help societies become more sustainable by focusing on the concept of 'Cleaner Production', which aims at preventing waste production and increasing efficiencies in energy, water, resources, and human capital use. The journal serves as a platform for corporations, governments, education institutions, regions, and societies to engage in discussions and research related to Cleaner Production, environmental, and sustainability practices.