Highly Efficient Ag(3)PO(4)/g-C(3)N(4) Z-Scheme Photocatalyst for Its Enhanced Photocatalytic Performance in Degradation of Rhodamine B and Phenol

Ag(3)PO(4)/g-C(3)N(4) heterojunctions, with different g-C(3)N(4) dosages, were synthesized using an in situ deposition method, and the photocatalytic performance of g-C(3)N(4)/Ag(3)PO(4) heterojunctions was studied under simulated sunlight conditions. The results revealed that Ag(3)PO(4)/g-C(3)N(4) exhibited excellent photocatalytic degradation activity for rhodamine B (Rh B) and phenol under the same light conditions. When the dosage of g-C(3)N(4) was 30%, the degradation rate of Rh B at 9 min and phenol at 30 min was found to be 99.4% and 97.3%, respectively. After five cycles of the degradation experiment for Rh B, g-C(3)N(4)/Ag(3)PO(4) still demonstrated stable photodegradation characteristics. The significant improvement in the photocatalytic activity and stability of g-C(3)N(4)/Ag(3)PO(4) was attributed to the rapid charge separation between g-C(3)N(4) and Ag(3)PO(4) during the Z-scheme charge transfer and recombination process.