超声波降解罗丹明B的研究

报道了用超声波诱导降解模拟水中低浓度罗丹明B染料废水的可行性实验.实验探讨了频率、功率、初始pH、O2、S2O2-8、TiO2光催化对降解速度的影响.实验结果表明:在功率为100%,频率为59 kHz,低pH,充O2饱和条件下,罗丹明B去除效果较好,在紫外光存在下加入S2O28能加快罗丹明B的降解,在TiO2光催化协同作用下,连续反应100 min,2.5 mg/L的罗丹明B 溶液去除率达88.37%.

Study on Degradation of Rhodamine B by Ultrasonic Wave

In this paper,a test for degradation of low concertration of Rhodamine B in simulated wastewater by ultrasonic wave was carried out.The effects of frequency,power intensity,initial pH value,saturated oxygen,S2O2-8and TiO2 photocatalysis on decomposition were explored.The results indicated that the removal rate of Rhodamine B under frequency of 59 kHz,power intensity100%,low pH,saturated oxygen is good;added S2O2-8 can accelerate the degradation rate of Rhodamine B;with help of TiO2 photocatalysis the removal rate of Rhodamine B in 100 mins came up to 88.37%.