纳米球状氧化锌的制备及光催化性能研究  

Studies on Preparation and Photocatalytic Property of Nano-Sized Spheric ZnO

作　　者：刘田田[1] 贾瑛[1] 程文娟[2] 

机构地区：[1]第二炮兵工程学院,陕西西安710025 [2]机械工业勘察设计研究院,陕西西安710043

出　　处：《化学推进剂与高分子材料》2011年第5期79-82,共4页Chemical Propellants & Polymeric Materials

摘　　要：在不添加表面活性剂条件下,用水热法合成制备出球状ZnO颗粒。利用X射线衍射(XRD)、电镜扫描(SEM)、紫外–可见漫反射光谱(UV-vis)等手段对产物进行表征,并根据实验结果提出可能的生长机理,并将制备的ZnO在紫外光照射下光催化降解30 mg/L的偏二甲肼(UDMH)废水。实验结果表明:制备的球状ZnO属于纳米级微粒,结晶度高,紫外吸收性能好,当ZnO的用量为0.1 g/L时,光催化活性最好。The spheric ZnO particle was prepared by using hydrothermal synthesis method without adding surfactants. The product was characterized by using X-ray diffraction（XRD）, scanning electron microscopy （SEM）, UV-Vis diffuse absorption spectra （UV-Vis）, and so on. The possible growing mechanism was proposed according to the experimental results. The synthesized spheric ZnO was used to photo-catalytically degrade wastewater containing 30 mg/L unsymmetrical dimethylhydrazine （UDMH） under UV radiation. The experimental results show that the synthesized spheric ZnO is nanosized particle with high crystallinity and good UV absorption. The photo-catalytic activity is the best when the concentration of ZnO is 0.1 g/L.

关 键 词：纳米 球状氧化锌 光催化 偏二甲肼 

分 类 号：TB383.1[一般工业技术—材料科学与工程]