The　design　and　catalytic　potential　of　materials　with　simultaneously　oxidation　and　reduction　performance　remains　underexplored,　particularly　in　three-dimensional　electrochemical　systems.　This　study　developed　a　carbon　nanosheet　framework　with　iron　insertion　and　nitrogen　doping,　as　the　skeleton　for　the　deposition　of.　nickel‑manganese　metal　mixture.　Advanced　characterization　confirmed　that　the　addition　of　Fe/C-N　skeleton　can　improve　morphology　and　specific　surface,　which　in　turn　enhances　electronic　conductivity　and　degradation　efficiency.　Electron　paramagnetic　resonance　(EPR)　and　density　functional　theory　(DFT)　calculations　certify　that　the　Fe/C-N　skeleton　can　enhance　the　electron　supply　capacity　and　thereby　accelerate　the　generation　and　stabilization　of　•H　and　•OH　species　during　the　reaction.　Under　optimal　conditions,　the　system　achieved　a　maximum　Chloracetamide　(MCAcAm)　degradation　rate　of　68.86　%　and　good　stability.　Moreover,　in　practical　tests　using　industrial　wastewater　pre-treated　with　chlorination,　the　composite　showed　exceptional　efficiency,　achieving　86.14　%　chemical　oxygen　demand　(COD)　and　74.01　%　total　organic　carbon　(TOC)　removal　within　1　h.　These　results　highlight　the　potential　of　NiMn-LDH/MnO2-Fe/C-N　(Name　it　NML-Fe/C-N)　for　practical　wastewater　treatment　and　provide　valuable　insights　into　the　design　of　advanced　electrode　materials　and　the　mechanisms　of　electrocatalytic　degradation.　©　2025　Elsevier　Inc.