纳米氧化铜/四针状氧化锌晶须复合催化剂的合成及其光催化性能研究  

Preparation and Photocatalytic Performance of nano-CuO/tetrapod-like ZnO Whisker Composites

作　　者：刘红[1] LIU Hong(Multicomponent Alloys Key Laboratory of Deyang City,Sichuan College of Architectural Technology,Department of Materials Engineering,Sichuan College of Architectural Technology,Sichuan Deyang 618000,China)

机构地区：[1]四川建筑职业技术学院多组元合金德阳市重点实验室,四川建筑职业技术学院材料工程系,四川德阳618000

出　　处：《广州化工》2022年第5期65-69,共5页GuangZhou Chemical Industry

基　　金：四川建筑职业技术学院科研项目(2019KJ10)。

摘　　要：采用简单易行且对环境污染小的化学合成法将p型半导体CuO纳米材料沉积在n型半导体四针状氧化锌晶须(T-ZnOw)表面制备复合半导体催化剂样品,对样品进行XRD和SEM检测研究其晶体组成和微观形貌,观察不同反应时间状态下纳米CuO的形貌,推测其形成机理,同时通过紫外光照条件下样品对甲基橙(MO)溶液的降解来表征其光催化活性。研究发现,聚乙二醇(PEG, Mw=400)和T-ZnOw对纳米CuO的生成起着重要作用,T-ZnOw表面沉积纳米CuO可有效提高其光催化活性。The p-type semiconductor CuO was deposited on the n-type tetrapod-like ZnO Whisker(T-ZnOw)surface, the sample of composite semiconductor catalyst was carried out by a simple and environmental friendly chemical synthesis method. The crystal composite and microstructure of the composite samples were investigated by XRD and SEM tests, and conjecture the formation mechanism of nano-CuO. At the same time, the photocatalytic activity of nano-CuO/T-ZnOw composites was characterized by the degradation of methyl orange(MO)aqueous solution under UV irradiation. It was found that polyethylene glycol(PEG, Mw=400)and T-ZnOw played an important role in the formation of nano-CuO, the structure and amount of CuO change with the increasing of reaction time. And the deposition of nano-CuO on the surface of T-ZnOw can effectively improve its photocatalytic activity.

关 键 词：纳米CuO/T-ZnOw复合催化剂 PEG400 光催化活性 

分 类 号：TQ426.64[化学工程]