In the TiO2 suspension system with ultrasonic-photocatalysis method

with Procion Blue MX-R as the model pollutant

the effects of ultrasonic on the decolorization and the degradation of ultrasonic-photocatalysis oxidation were investigated in MX-R solution and in MX-R solution containing Fe3+ ions.Results demonstrated that the ultrasonic and the photocatalysis exist co-operation function in the process of the decolorization and the degradation CODCr for the MX-R solution and the MX-R solution containing Fe3+ ions

its synergisms of the decolorization were much more greater than the degradation

its synergistic values of decolorization were 0.297 and 0.018 respectively

and its synergistic values of degradation CODCr were 0.005 7 and 0.001 5 respectively;In the process of the decolorization and the degradation CODCr for the solution containing Fe3+ ions using ultrasonic-photocatalysis method

the ultrasonic can enhance the capacity that Fe3+ ions in the MX-R solution captures photoelectron on the TiO2 surface.