以中孔MCM-41为载体制得均一分散的粒径约5 nm的Ru纳米粒子催化剂MCM-41-Ru,采用电感耦合等离子体、透射电镜、能量散射谱、X射线衍射和N_2吸附-脱附法对其进行了表征,并将其作为可重复使用高效催化剂用于超声辅助芳烃选择氧化反应.结果表明,在超声辐射和KBrO_3为氧化剂条件下,MCM-41-Ru催化剂加速了氧化反应,并以较高产率得到目的产物.回收的催化剂用于下次反应时活性保持不变,但其活性中心性质发生变化. The mesoporous MCM-41 was used as carrier to prepare a uniformly dispersed Ru nanoparticle catalyst MCM-41-Ru with a size of about 5 nm. Inductively coupled plasma, transmission electron microscopy, energy dispersive spectroscopy, X-ray diffraction and N 2 adsorption- The results show that the MCM-41-Ru catalyst accelerates the oxidation reaction under ultrasonic irradiation and KBrO 3 as oxidant, And the target product was obtained at a higher yield.The recovered catalyst was used for the next reaction while its activity remained unchanged, but the nature of its active site was changed.