Developing low-oxidant, high efficiency catalysts is critical to meet the green-circular goal in water treatments. Heteroatom-doped graphite-based carbon nitride carrier catalysts are among the most promising candidate materials in water purification catalysis. In this research, a bimetallic catalyst (Fe-Cu@SNC), featuring dual reaction centers, was prepared using a mass-producible co-precipitation method. This catalyst, Fe-Cu@SNC, exhibits excellent bimetallic synergism, enabling efficient peroxymonosulfate (PMS) activation and rapid degradation of pollutants at low PMS dosage (0.1 mM). Compared to monometallic Fe@SNC and Cu@SNC, Fe-Cu@SNC achieved a 5.78-fold and 4.45-fold enhancement in the degradation rate constant (k