Dual transfer channels in FeCN/ZnSe/V2O5 dual Z-Scheme ternary heterojunctions facilitating efficient degradation of Congo red dye

The current study investigates the fabrication of a dual Z-scheme photocatalytic system, i.e., FeCN/ZnSe/V2O5, to effectively remove Congo red (CR) dye. Recently, photocatalysis has gained popularity as a practical wastewater treatment approach due to using solar energy (a renewable energy source). All photocatalysts were synthesized using a simple and cost-effective method, such as thermal polycondensation and the hydrothermal method, to fabricate FeCN and ZnSe, respectively, while the calcination technique was used to construct bare V2O5. A physical mixing approach was used to form the binary and ternary heterojunctions of FeCN/ZnSe and FeCN/ZnSe/V2O5 heterojunction photocatalyst. By prolonging light…