采用超声波和TiO2光催化联合方法降解染料活性黑KN-B,研究了溶液初始浓度、反应时间、TiO2投加量、pH等对活性黑KN-B降解效果的影响,同时对比单一超声波、单一TiO2光催化、超声波和TiO2光催化联合降解作用。实验结果表明,当活性黑KN-B初始浓度为50 mg/L,TiO2用量为0.6 g/L,pH为5.6±0.5时,在超声波和紫外光照共同作用60 min后色度去除达到98.18%,超声波和TiO2光催化表现出协同作用。 The effect of initial solution concentration, reaction time, dosage of TiO2 and pH on the degradation of reactive black KN-B was studied. The effects of single ultrasonic wave, single TiO2 Photocatalysis, Ultrasound and TiO2 Photocatalytic Degradation. The experimental results show that when the initial concentration of activated black KN-B is 50 mg / L, the dosage of TiO2 is 0.6 g / L and the pH is 5.6 ± 0.5, the color removal is 98.18% after 60 min of ultrasonic and ultraviolet light irradiation, Ultrasound and TiO2 photocatalytic synergy.