▎ 摘　　要

Herein, biactive centers of Fe-0-anchored graphitic N-rich graphene (Fe-GNG) were constructed via coordination and hydrogen bonding assemblies followed by calcination. The obtained Fe-GNG exhibited excellent peroxymonosulfate (PMS) activation ability to degrade diverse organic pollutants, accompanied by very low activation energy. Electron paramagnetic resonance and quenching experiments indicated that OH and O-1(2) were the predominant reactive species responsible for organics degradation, and were generated from PMS activation mainly at Fe-0 and graphitic N sites, respectively. The degradation process had wide pH (2.2-10.3) and temperature (5-45 degrees C) application ranges, and a high tolerance to common matrix species, which enabled application to natural water systems. Furthermore, the magnetic Fe-GNG catalyst exhibited high stability and reusability, still degrading over 90% organics after five runs. This work provides a feasible strategy to construct multiple active sites for PMS activation, and clarifies the synergistic effect of metal and carbonaceous materials in radical and nonradical activation processes.