High-Visible\nLight Response AgNbO<sub>3</sub>/Bi<sub>2</sub>MoO<sub>6</sub>/PANI\nDouble Z‑Scheme Heterojunction\nPhotocatalytic Degradation of Antibiotics

In this study, a novel AgNbO<sub>3</sub>/Bi<sub>2</sub>MoO<sub>6</sub>/PANI double Z-scheme heterojunction photocatalyst\nwas created\nvia a solvothermal method, and the method investigates its photocatalytic\ndegradation performance toward norfloxacin (NOR) and other antibiotics.\nWhen the content of AgNbO<sub>3</sub> is 5 wt % and the content of\nPANI is 1 wt %, the rate of degradation of AgNbO<sub>3</sub>/Bi<sub>2</sub>MoO<sub>6</sub>/PANI on NOR under visible light is 95.56%,\nthe rate of removal of total organic carbon is ∼57.45%, and\nits pseudo-first-order reaction rate constant is 0.01878 min<sup>–1</sup>, which surpasses those of AgNbO<sub>3</sub>, Bi<sub>2</sub>MoO<sub>6</sub>, and AgNbO<sub>3</sub>/Bi<sub>2</sub>MoO<sub>6</sub> by factors\nof 14.22, 2.46, and 1.35, respectively. At the same time, the AgNbO<sub>3</sub>/Bi<sub>2</sub>MoO<sub>6</sub>/PANI photocatalyst still showed\ngood stability after three cycles. The results demonstrated that the\naugmented photocatalytic performance of AgNbO<sub>3</sub>/Bi<sub>2</sub>MoO<sub>6</sub>/PANI can be attributed to the formation of a double\nZ-scheme heterojunction and the incorporation of PANI with excellent\nconductivity, resulting in the higher efficiency of migration of charge\ncarriers while retaining strong redox ability. This work affords a\nhigh-efficiency and environmentally friendly reference for the development\nof a Bi<sub>2</sub>MoO<sub>6</sub>-based heterojunction photocatalyst\nand its application in the purification of antibiotics in water.