In this study, SiO₂/Ag Core/Shell nanoparticles was prepared and sonocatalytic activity of prepared catalyst was investigated by using Rhodamine B as model contaminant, at 35 kHz using ultrasonic power of 160 W within 90 min. The change in efficiency in the sonocatalytic degradation of Rhodamine B catalyzed by SiO₂/Ag Core/Shell nanoparticles with respect to the initial concentration of dye, catalyst amount and temperature were firstly investigated. Optimal conditions were found as follows: catalyst amount = 15 mg/L, Temperature = 25 °C and initial concentration of dye = 10 ppm. Influence factors such as pH of solution, O₂ saturation of solution and the concentration of H₂O₂ added to the solution, on degradation efficiency in presence of catalyst, were investigated. SiO₂/Ag Core/Shell nanoparticles showed higher sonocatalytic activity at pH = 7 with respect to acidic and alkaline conditions. Degradation efficiency was reached up to 67% in experiments which air pumped (0.6 L/min) through the solution with in 90 min. It was observed that the dye removal increased via increase while H₂O₂ concentration lower than 10 mM. Higher concentration of H₂O₂ than the optimal concentration had adverse effect on degradation efficiency. Our results showed that the SiO₂/Ag Core/Shell nanoparticles were active catalyst for sonocatalytic degradation of dyes. Reusability of the catalyst was investigated.

在这项研究中，制备了SiO ₂ / Ag核/壳纳米颗粒，并以罗丹明B为模型污染物，在35 kHz下使用90分钟的160 W超声功率研究了制备的催化剂的声催化活性。首先研究了SiO ₂ / Ag核/壳纳米粒子催化罗丹明B的声催化降解效率相对于染料初始浓度，催化剂用量和温度的变化。发现最佳条件如下：催化剂量＝ 15mg / L，温度＝ 25℃，染料的初始浓度＝ 10ppm。溶液的pH值，溶液的O ₂饱和度和H ₂ O ₂的浓度等影响因素研究了添加到溶液中的催化剂在催化剂存在下的降解效率。相对于酸性和碱性条件，SiO ₂ / Ag核/壳纳米颗粒在pH = 7时显示出更高的声催化活性。在90分钟内将空气泵送（0.6 L / min）通过溶液的实验中，降解效率高达67％。观察到染料去除通过增加而增加，而H ₂ O ₂浓度低于10 mM。H ₂ O ₂的浓度高于最佳浓度会对降解效率产生不利影响。我们的结果表明，SiO ₂/ Ag Core / Shell纳米粒子是用于声催化降解染料的活性催化剂。研究了催化剂的可重复使用性。