Ultrasonics Sonochemistry ( IF 8.7 ) Pub Date : 2018-03-17 , DOI: 10.1016/j.ultsonch.2018.02.052 Y.M. Hunge , A.A. Yadav , V.L. Mathe
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.
中文翻译:
超声辅助合成WO 3 -ZnO纳米复合材料用于艳丽的蓝色染料降解
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。