Abstract
A novel photocatalyst comprising Fe-g-C3N4/FePc/BiVO4 heterostructure was synthesized using hydrothermal and muffle incineration methods. The synthesized catalyst was subjected to characterization using SEM, XRD, EDX, XPS, photocurrent response, and EIS analysis. Results showed that the Fe-g-C3N4/FePc/BiVO4 heterojunction composites significantly enhance the efficiency and stability of degradation of RhB. The unique advantages of the heterojunction composites include a wide range of light absorption and a small electron–hole complexation rate. Compared to pristine Fe-g-C3N4, FePc, and BiVO4, the photocatalytic activity and stability were significantly improved. The formation of a new structure of Fe-g-C3N4 and FePc and BiVO4 successfully adjusted the electron transfer route, resulting in more active sites and improving the efficiency of photogenerated charge separation. Furthermore, a possible mechanism for the photocatalytic degradation of RhB was proposed.
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