One-step synthesis of amorphous SbVO4 with remarkably stable sonocatalytic activity

Abstract

Semiconductor materials have always been an enduring research focus and play an important role in the development of science technology and economy. Amorphous SbVO4 nanoparticles were successfully prepared by a low-temperature aqueous solution chemical method. The morphology and elemental composition of SbVO4 nanoparticles were analyzed by XRD, SEM, XPS and DRS. The semiconductor material was applied to the acoustic catalytic degradation of quinoline blue (QB). The effects of ultrasonic power, catalyst amount, initial dye concentration and pH value on the degradation rate were studied. In the solution of QB with different concentration (5∼20 mg/L), the efficiency of the degradation of amorphous SbVO4 by acoustic catalysis was more than 97%. The acoustic catalytic degradation of QB by amorphous SbVO4 nanoparticles was not restricted by pH. After four cycle experiments, the sonocatalytic degradation rate of amorphous SbVO4 could still reach 83.97%. The possible sonocatalytic mechanism of SbVO4 was proposed.