Ultrasound assisted synthesis of WO3-ZnO nanocomposites for brilliant blue dye degradation
Ultrasound assisted synthesis of WO3-ZnO nanocomposites for brilliant blue dye degradation
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DOI：
10.1016/j.ultsonch.2018.02.052
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发表时间：
2018-07-01
影响因子：
8.4
通讯作者：
Mathe, V. L.
中科院分区：
文献类型：
--
作者：
Hunge, Y. M.;Yadav, A. A.;Mathe, V. L.
本文研究了超声辐射下WO 3和WO 3-ZnO纳米复合材料的制备及其在超声催化降解艳蓝染料中的应用。采用超声辅助一步法原位合成了WO 3-ZnO纳米复合材料。采用XRD、拉曼、BET、FE-SEM和EDS等表征手段对所制备的WO 3和WO 3-ZnO纳米复合材料进行了表征。XRD分析结果表明，WO 3和ZnO分别形成了单斜和六方晶体结构。BET研究表明，WO 3-ZnO纳米复合材料比WO 3具有最大的比表面积。EDS研究证实了WO 3-ZnO纳米复合材料的形成。进一步地，所制备的WO 3和WO 3-ZnO纳米复合物作为用于降解亮蓝染料的声催化剂的用途。速率常数（k）作为亮蓝染料的初始浓度的函数进行评估。结果表明，与WO 3光催化剂相比，WO 3-ZnO纳米复合材料具有最大的声催化活性。
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 nano composites 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 nano composites exhibits maximum sonocatalytic activity as compared to WO3 photocatalyst.