FeCu-ZSM-5　heterobimetallic　zeolite　exhibits　a　broad　application　prospect　in　the　selective　catalytic　reduction　with　ammonia　(NH3-SCR)　due　to　the　advantage　complementary　and　synergistic　effect　of　different　metals,　however,　its　preparation　faces　serious　problems　of　high　material　and　energy　consumption　as　well　as　environmental　pollution.　In　view　of　this,　a　synthetic　study　was　conducted　to　explore　a　new　green　preparation　process　for　hierarchical　FeCu-ZSM-5　zeolite　using　natural　minerals　as　precursors　and　without　templating　agents.　During　the　synthesis　process,　natural　minerals　served　as　the　sole　source　of　silica,　alumina,　and　iron,　with　no　organic　templating　agents　added,　and　a　crystal　seed　inducing　synthesis　approach　was　employed.　The　optimal　synthesis　conditions　were　determined　by　systematically　investigating　the　key　influencing　factors.　The　NH3-SCR　performance　of　the　synthesized　hierarchical　FeCu-ZSM-5　was　examined,　and　various　characterization　techniques　were　used　to　probe　the　structure-performance　relationship　of　the　hierarchical　FeCu-ZSM-5.　The　results　indicate　that　the　incorporation　of　Cu　significantly　enhances　the　low-temperature　denitration　activity　of　the　FeCu-ZSM-5　zeolite,　thereby　expanding　its　temperature　window.　The　introduction　of　Cu　does　not　alter　the　topology　of　FeCu-ZSM-5　but　can　modulate　the　location　and　distribution　of　Fe　and　Cu　within　the　zeolite,　as　well　as　its　reducing　and　acidic　properties.　The　presence　of　higher　framework　Fe,　isolated　Cu2+　ions,　and　good　redox　capacity　and　suitable　acidity　collectively　contribute　to　the　superior　denitration　performance　of　the　FeCu2-ZSM-5　zeolite.　©　2025　Chemical　Industry　Press　Co.,　Ltd..　All　rights　reserved.