▎ 摘　　要

With the acceleration of industrialization, the removal of refractory organic dyes from water and how to promote its practical application remains a challenge. Herein, we synthesized an FeCo-LDH/LI-NDG composite electrode material by a simple laser-induced technique on polyimide films, which could electrocatalytically activate peroxymonosulfate (PMS) to completely degrade MB in about 6 min. The reaction rate constant (k(obs)) was 0.461 min(-1). It was faster than most of the currently reported electrocatalysts. The reaction system demonstrated good interference resistance and catalytic effectiveness in the pH range of 3 to 9. According to the chemical quenching and electron paramagnetic resonance (EPR) experiments, the non-radical pathway of O-1(2) and the radical pathways of SO4 & BULL;-, & BULL;OH and O-2(& BULL;-) were involved in the reaction synergistically, with O-1(2) playing the dominant role. O-1(2) was produced through the dual pathway of PMS electron loss at the anode and O-2(& BULL;-) intermediate transformation at the cathode. The two activation methods of electro-activation and catalytic activation of PMS had synergistic effects to achieve high efficiency in the whole process of production, reaction and recovery, providing new ideas to advance practical applications.