The Fenton-like process has been regarded as a clean and efficient approach to generate reactive oxygen species (ROS) to deal with the ever-growing environmental pollution. However, developing improved catalysts with adequate activity and stability remains a long-term goal for practical application. Herein, crystalline carbon nanotubes (CNTs) interconnected Fe/Fe₃C-doped nanoporous carbonitride (Fe-NC) was easily prepared by the pyrolysis of ZIF-8 confined with Fe³⁺. The obtained Fe-NCs possessed high degrees of graphitic carbon and nitrogen. Such Fe-NCs can enhance the activation of peroxymonosulfate (PMS) for the removal of multiple organic contaminants. The optimized Fe-NC/PMS system exhibited impressive catalytic performance, with a TOF as high as 4.43 min⁻¹ for 3BF degradation, and the removal efficiency of other dyes, phenols and antibiotics was up to 96.2% within 10 min. The removal efficiency of 3BF was 93.4% within 10 min with extremely low iron ions leaching (<0.052 mg/L) even after five cycles. In addition, the effects of pH on the catalytic performance demonstrated that the decomposition of 3BF exceeded 95.6% even when the initial pH varied from 5 to 10. We confirmed that SO₄^-, OH, O₂^- and ¹O₂ were generated in the catalytic system of Fe-NC/PMS, which played a critical role in degrading the organics. These findings provide new insights into the design of environmental-friendly Fenton-like catalysts with high efficiency and favorable stability in environmental remediation.

类Fenton工艺已被视为一种清洁有效的方法，可产生活性氧（ROS）以应对日益增长的环境污染。然而，开发具有足够活性和稳定性的改进催化剂仍然是实际应用的长期目标。在此，通过Fe ³⁺限制的ZIF-8的热解，很容易制备互连Fe / Fe ₃ C掺杂的纳米多孔碳氮化物（Fe-NC）的晶体碳纳米管（CNT）。所获得的Fe-NCs具有高度的石墨碳和氮。此类Fe-NC可增强过氧一硫酸盐（PMS）的活化，以去除多种有机污染物。优化的Fe-NC / PMS系统表现出令人印象深刻的催化性能，TOF高达4.43 min ^-13BF的降解，在10分钟内其他染料，酚和抗生素的去除率高达96.2％。即使经过五个循环，在10分钟内3BF的去除效率仍为93.4％，并且铁离子的浸出极低（<0.052 mg / L）。此外，pH值对催化性能的影响证明了3BF的分解超过95.6％即使在初始pH从5变化到10。我们证实，SO ₄ ^- ，OH，O- ₂ ^-和¹ Ò ₂Fe-NC / PMS的催化体系中产生了这些化合物，这对降解有机物起了关键作用。这些发现为高效设计和在环境修复中具有良好稳定性的环保型Fenton类催化剂的设计提供了新的见解。