Since the discovery of the potential hazards of ciprofloxacin (CIP) to the ecosystem and human health, there has been an urgent need to develop effective technologies to solve the severe issue. In this work, the nanozero-valent iron graphitized carbon matrix (xFe@CS-T_m) were prepared via a hydrothermal method to activate peroxydisulfate (PDS) for degradation of CIP. Specifically, 0.5Fe@CS-T₇ exhibited the excellent catalytic performance for PDS activation to degrade CIP. Moreover, the catalyst exhibited vigorous interference resistance at various pH values, in the presence of various inorganic anions and under humic acid conditions. The characterization results demonstrated that Fe was successfully embedded on the carbon matrix and became the active sites to promote ROS production. It is demonstrated that O₂^•− was the main active species rather than •OH and SO₄^•−, based on quench trapping, EPR experiments and steady state concentrations calculations. The possible pathways of CIP degradation were proposed using LC–MS results and density functional theory. The outcomes of the toxicity estimation software tool found that the toxicity of CIP was reduced. This study not only investigated a novel methodology for the degradation of antibiotic wastewater but also provides a feasible pathway for carbon-neutral wastewater treatment.

自从发现环丙沙星（CIP）对生态系统和人类健康的潜在危害以来，迫切需要开发有效的技术来解决这一严重问题。在这项工作中，通过水热法制备了纳米零价铁石墨化碳基体 ( x Fe@CS-T _m )，以活化过二硫酸盐 (PDS) 来降解 CIP。具体来说，0.5Fe@CS-T ₇对 PDS 活化降解 CIP 表现出优异的催化性能。此外，该催化剂在各种 pH 值、各种无机阴离子存在和腐植酸条件下均表现出很强的抗干扰性。表征结果表明，Fe成功嵌入碳基体上，成为促进ROS产生的活性位点。结果表明，O ₂ ^•-是主要的活性物种，而不是 •OH 和 SO ₄ ^•-，基于淬火捕获、EPR 实验和稳态浓度计算。使用 LC-MS 结果和密度泛函理论提出了 CIP 降解的可能途径。毒性估计软件工具的结果发现 CIP 的毒性降低了。该研究不仅研究了一种降解抗生素废水的新方法，而且为碳中和废水处理提供了一条可行的途径。