Magnetic Biochar Derived from Waste Bamboo as a Peroxymonosulfate Activator for Tetracycline Hydrochloride Degradation

作者：Xingyan Huang, Xingyan Huang, Yuanlong Chen, Yujia Zhang, Hongpeng Li, Shihao Xu, Xinhong Fu, Anjiu Zhao, Xiaobo Huang, Xiaobo Huang, Jiaming Lai · 发表于：Molecules · 年份：2025 · DOI：10.3390/molecules30112283 · 被引用次数：3 · 研究领域：Advanced oxidation water treatment、Environmental remediation with nanomaterials、Advanced Photocatalysis Techniques

Magnetic Fe and N-doped biochar (FeN-BC) was synthesized from waste bamboo through microwave pyrolysis and used as a catalyst for the degradation of tetracycline hydrochloride (TC) with peroxymonosulfate (PMS). The results showed that doping with Fe improved the recovery performance of biochar and the N-doping enhanced the activity of PMS. Simultaneously, it achieved a high degradation efficiency for TC (93%) under optimized conditions within 30 min. Electron paramagnetic resonance (EPR) and quenching experiments indicated that the main active radicals present in the experiment were SO4•− and •OH. Additionally, FeN-BC demonstrated good catalytic performance in the TC degradation process in a real water environment after five cycles. This work presents a practical strategy for preparing magnetic biochar to degrade organic pollutants from wastewater.