The construction of heterogeneous catalysts with high efficiency is significant for the degradation of persistent contaminants. Herein, the g-C₃N₄/AgFeO₂ composite was fabricated and its composition, morphology and structure were systematically characterized. g-C₃N₄/AgFeO₂ exhibited boosting peroxymonosulfate (PMS) catalytic performance on the degradation of Orange I (OI) than pure AgFeO₂. It was optimized that the elimination of OI could be enhanced to 91%, with a kinetic rate of 0.076 min^-1. Such enhancement was attributed to the increment of low-valent metal species (Ag⁰/Ag⁺, Fe²⁺/Fe³⁺) on AgFeO₂ surface after coupling with g-C₃N₄, additionally, the synergy of g-C₃N₄ and AgFeO₂ endowed the g-C₃N₄/AgFeO₂ composite with higher conductivity and more electron transfer, thereby promoting effective PMS decomposition. The leaching of metal ions in the g-C₃N₄/AgFeO₂/PMS system was suppressed, which brought superior reusability and stability. It was verified that ¹O₂、O₂^•-、SO₄^•- and •OH acting as the key reactive oxygen species contributed to the OI removal. Our findings provided valuable insights into the design of efficient and stable g-C₃N₄-based organometallic composites for advanced oxidation processes.

高效非均相催化剂的构建对于持久污染物的降解具有重要意义。在此，制备了gC ₃ N ₄ /AgFeO ₂复合材料，并对其组成、形貌和结构进行了系统表征。gC ₃ N ₄ /AgFeO ₂表现出比纯AgFeO ₂更高的过氧单硫酸盐（PMS）催化降解橙子I（OI）的性能。优化后OI消除率可提高至91%，动力学速率为0.076  min ^-1。这种增强归因于低价金属种类的增加（Ag ⁰ /Ag ⁺, Fe ²⁺ /Fe ^{3+ ) 与gC} ₃ N ₄偶联后AgFeO ₂表面上的Fe 2+ /Fe 3+ ) ，此外，gC ₃ N ₄和AgFeO ₂的协同作用赋予gC ₃ N ₄ /AgFeO ₂复合材料更高的电导率和更多的电子转移，从而促进有效的 PMS 分解。_{gC 3} N ₄ /AgFeO ₂ /PMS体系中金属离子的浸出受到抑制，带来了优异的可重复使用性和稳定性。经验证¹ O ₂、O ₂ ^•-、SO ₄ ^•-和•OH作为关键的活性氧物质有助于OI的去除。我们的研究结果为设计用于高级氧化工艺的高效稳定的 gC ₃ N ₄基有机金属复合材料提供了宝贵的见解。