Traditional free radicals-dominated electrochemical advanced oxidation processes (EAOPs) and sulfate radical-based advanced oxidation processes (SR-AOPs) are limited by pH dependence and weak reusability, respectively. To overcome these shortcomings, electro-enhanced activation of peroxymonosulfate (PMS) on a novel perovskite-Ti₄O₇ composite anode (E-PTi-PMS system) was proposed. It achieved an ultra-efficient removal rate (k = 0.467 min^-1) of carbamazepine (CBZ), approximately 36 and 8 times of the E-PTi and PTi-PMS systems. Singlet oxygen (¹O₂) played a dominant role in the E-PTi-PMS system and transformed from ${\text{SO}}_4^{•-}$, ${\mathrm{O}}_2^{•-}$, ^•OH and oxygen vacancy (${\mathrm{V}}_{\mathrm{o}}^{••}$). The electric field expedited the decomposition and utilization of PMS, promoting the generation of radicals and expanding the formation pathway of ¹O₂. The E-PTi-PMS system presented superiorities over wide pH (3–10) and less dosage of PMS (1 mM), expanding the pH adaptability and reducing the cost of EAOPs. Simultaneously, the excellent reusability (30 cycles) solved the bottleneck of recycling catalysts in SR-AOPs via an ultra-low energy (0.025 kWh/m³-log). This work provides a promising alternative towards high-efficiency and low-cost treatment of polluted waters.

传统的自由基主导的电化学高级氧化过程 (EAOPs) 和基于硫酸根的高级氧化过程 (SR-AOPs) 分别受到 pH 依赖性和弱可重用性的限制。为了克服这些缺点，提出了一种新型钙钛矿-Ti ₄ O _{7复合阳极（E-PTi-PMS系统）上的过一硫酸盐（PMS）电增强活化。}它实现了卡马西平 (CBZ) 的超高效去除率 ( k  = 0.467 min ^-1 )，大约是 E-PTi 和 PTi-PMS 系统的 36 倍和 8 倍。单线态氧 ( ¹ O ₂ ) 在 E-PTi-PMS 系统中起主导作用，并从${\text{所以}}_{\mathrm{4个}}^{•-}$,${\mathrm{欧}}_{\mathrm{2个}}^{•-}$, ^• OH 和氧空位 (${\mathrm{V}}_{\mathrm{o}}^{••}$). 电场加速了PMS的分解和利用，促进了自由基的产生，拓宽了¹ O ₂的形成途径。E-PTi-PMS 系统在宽 pH (3-10) 和 PMS 剂量较少 (1 mM) 方面具有优势，扩大了 pH 适应性并降低了 EAOP 的成本。同时，出色的可重复使用性（30 个循环）通过超低能量（0.025 kWh/m ³ -log）解决了 SR-AOP 中回收催化剂的瓶颈。这项工作为高效、低成本地处理污染水域提供了一个有前途的替代方案。