Highly stable and efficient Ag/AgCl@TiO2 photocatalyst: Preparation, characterization, and application in the treatment of aqueous hazardous pollutants

► The preparation procedure for Ag-AgCl/TiO2 was convenient and feasible. ► Ag-AgCl/TiO2 was very efficient under visible-light irradiation. ► Ag-AgCl/TiO2 can photodegrade 4-chlorophenol and Cr(VI) effectively. ► The surface plasmon resonance effect of Ag0 nanoparticles played a key role.