Preparation of graphene oxide load Ag 3 PO 4 @PANI composite and its photocatalytic performance

To solve severe photocorrosion of Ag3PO4, which was used to prepare a core–shell Ag3PO4@PANI composite photocatalyst by chemisorption, and GO used as the carrier of Ag3PO4@PANI composite photocatalyst, reaching the superior carrier separation efficiency via synergetic effect of GO and PANI. The photocatalyst shows visible light activity for the degradation of phenol, CIP, TC and dyes were 98.1%, 90.3%, 98.6% and 100% respectively in 24 min, 18 min, 15 min and 5 min, respectively. Even after six repeat reactions, Ag3PO4@PANI/GO still maintained a high degradation rate. The trapping experiments confirm that •h+ and •O2 were the main active species in the photocatalytic degradation. The experimental results show that a core-shell structure is formed between PANI and Ag3PO4, the introduction of GO increases the electron transport rate, and the synergistic effect of PANI and GO on Ag3PO4 promotes the separation of photogenerated electrons and holes, thereby improving the stability of Ag3PO4 And photocatalytic activity.