Anion-exchange precipitation synthesis of α-Ag2WO4/Zn-Cr layered double hydroxides composite with enhanced visible-light-driven photocatalytic activity

- α-Ag2WO4/Zn-Cr LDHs was prepared by an anion-exchange precipitation method.
- α-Ag2WO4 particles were highly dispersed on the surface of Zn-Cr LDHs materials.
- α-Ag2WO4/Zn-Cr LDHs shows much higher activity in the photodegradation of RhB.
- The photocatalytic mechanism was proposed.