Low temperature one-step synthesis of Ag nanoparticles on BaTiO 3 for synergistic piezo-photocatalytic properties

It is a major constraint that complex synthesis methods limit the application of catalysts. Herein, Ag/BaTiO 3 catalyst is synthesized via a facile method, which demonstrates the outstanding catalytic properties. Investigations reveal that Ag-loading BaTiO 3 could increase carrier concentration, reduce the electronic impedance and enhance carrier ' s separation efficiency under ultrasonic vibration, leading to superior piezocatalytic performance. Therefore, Ag/BaTiO 3 catalyst presents the high degradation efficiency of 95.4 % in 50 min for RhB dye solution at light illumination and ultrasonic vibration. Moreover, when Ag content is 0.33 %, the degradation ratio of the sample still remains 81.9 % after 5th cycles, which indicates Ag/BaTiO 3 catalyst has good stability. This work provides a novel and easy implement strategy for designing high performance catalysts, and could be extended to other catalytic material.