Fe0/Fe3O4/Coke composite was synthesized and used as the heterogeneous Fenton catalyst.
Response surface methodology was used to study the degradation of p-Nitrophenol in Fe0/Fe3O4/Coke-H2O2 system.
A possible degradation pathway of p-Nitrophenol in Fe0/Fe3O4/Coke-H2O2 process was proposed.
The obtained Fe0/Fe3O4/Coke composite was low-cost and environment-friendly and showed good stability for repeated use.