超声强化二氧化钛催化降解染料废水中甲基橙效果的研究

Uitrasonic degradation of MO was studied with TiO_2 as catalyst

超声强化TiO2催化降解染料废水中甲基橙的效果受超声辐射时间、TiO2加入量、超声波频率、超声波输出功率等因素影响。实验结果表明:随着超声辐射时间的延长,甲基橙的降解率持续增大;当TiO2加入量为750mg/L,超声频率为25kHz,功率为55W时甲基橙降解效果最佳。研究结果证明,超声波对二氧化钛催化氧化反应有一定的强化作用。

Plenty of factors affecting the ultrasonic degradation of MO with TiO2 as catalyst were studied in this paper, for example, the time of ultrasonic radiation, the quantity of TiO2, the ultrasound frequency and power. Studied the degradation effects only when time changed and found that with the prolonging of the time, the degradation rate of MO were keeping rising. The best conditions are as follows： the quantity of TiO2 added is 0.75mg/L,The frequency and the power of the ultrasound are25 KHz and 55w.