The development of the efficient material for peroxymonosulfate (PMS) activation is of great importance for water treatment. Herein, a novel magnetic Cu/γ-Fe₂O₃ catalyst with a dual reaction center (DRC) and abundant heterojunctions/interfaces was constructed, in which uniform composite Cu/γ-Fe₂O₃ nanoparticles were anchored on a thin continuous carbon framework. The asymmetric configuration of the Cu/γ-Fe₂O₃ catalyst significantly promotes the adsorption and activation of PMS by strengthening Fe–OH coordination and reducing the adsorption energy barrier of interfacial Cu sites. The efficient conversion of SO₄^•- and the generation of singlet oxygen (¹O₂) were realized in the Cu and γ-Fe₂O₃ domains, respectively, owing to the electron polarization distribution in Cu/γ-Fe₂O₃. Through synergetic multi-pathway activation, tetracycline (TC) underwent efficient degradation over a wide pH range (3–11), and the degradation efficiency was not inhibited by common ions. The reaction rate of Cu/γ-Fe₂O₃ (0.685 min⁻¹) was 5.1 and 9.8 times higher than that of the non-DRC Cu and γ-Fe₂O₃ catalysts, respectively. Furthermore, the Cu/γ-Fe₂O₃ + PMS system exhibited excellent stability and significantly low metal leaching. This work provides a possible approach to address the application bottlenecks of metal-based catalysts as well as to develop novel environmental remediation materials.

用于过氧单硫酸盐（PMS）活化的有效材料的开发对于水处理非常重要。在此，一种新型的磁性的Cu /γ-的Fe ₂ ö ₃与双反应中心（DRC）和丰富的异质结催化剂/接口构建，其中均匀的复合铜/γ-的Fe _2个ö ₃纳米颗粒锚定在一薄的连续碳框架。在Cu /γ-Fe的非对称配置₂ ö ₃催化剂，通过加强的Fe-OH协调和降低界面Cu位的吸附能垒显著促进PMS的吸附和活化。SO ₄ ^•-的有效转化和单线态氧（产生¹ Ò ₂）中的Cu和γ -铁分别实现_2个ö ₃结构域，分别，由于在铜/γ -铁的电子偏振分布₂ ö ₃。通过协同多途径激活，四环素（TC）在较宽的pH范围（3-11）内均发生了有效降解，并且降解效率不受普通离子的抑制。Cu的反应速率/γ-的Fe ₂ ö ₃（0.685分钟^-1）明显高于非DRC的Cu高5.1和9.8倍和γ-的Fe _2种ö ₃催化剂，分别。此外，在Cu /γ-的Fe ₂ ö ₃ + PMS系统具有出色的稳定性和极低的金属浸出率。这项工作为解决金属基催化剂的应用瓶颈以及开发新型的环境修复材料提供了一种可能的方法。