The present work deals with the preparation of WO₃ and WO₃-ZnO nanocomposites in presence of ultrasonic irradiation, and its use in the sonocatalytic degradation of brilliant blue dye. WO₃-ZnO nanocomposite is prepared using one step in-situ ultrasound assisted method. The successfully prepared WO₃ and WO₃-ZnO nanocomposites were characterized using different characterization techniques such as XRD, Raman, BET, FE-SEM and EDS. The XRD pattern reveals that the formation of monoclinic and hexagonal crystal structures of WO₃ and ZnO respectively. BET study shows that WO₃-ZnO nanocomposite have maximum surface area than that of the WO₃. EDS study confirms the formation of WO₃-ZnO nanocomposites. Further the use of the prepared WO₃ and WO₃-ZnO nanocomposites as a sonocatalyst for the degradation of brilliant blue dye. The rate constant (k) was evaluated as a function of the initial concentration of brilliant blue dye. It is found that WO₃-ZnO nanocomposites exhibits maximum sonocatalytic activity as compared to WO₃ photocatalyst.

本工作涉及在超声辐射的存在下制备WO ₃和WO ₃ -ZnO纳米复合材料，及其在声催化降解亮蓝色染料中的用途。WO ₃ -ZnO纳米复合材料是采用一步原位超声辅助方法制备的。使用不同的表征技术（例如XRD，拉曼，BET，FE-SEM和EDS）对成功制备的WO ₃和WO ₃ -ZnO纳米复合材料进行表征。XRD图谱表明WO ₃和ZnO分别形成单斜晶和六方晶结构。BET研究表明，WO ₃ -ZnO纳米复合材料具有比WO ₃更大的表面积。。EDS研究证实了WO ₃ -ZnO纳米复合材料的形成。此外，所制备的WO ₃和WO ₃ -ZnO纳米复合材料作为声光催化剂用于降解亮蓝色染料的用途。将速率常数（k）作为亮蓝色染料的初始浓度的函数进行评估。发现与WO ₃光催化剂相比，WO ₃ -ZnO纳米复合材料表现出最大的声催化活性。