Cu^(2+)掺杂ZnO的制备及光催化性能研究  

Preparation of Cu^(2+) Doped ZnO Nanomaterials and Its Photocatalytic Degradation of Methylene Blue

作　　者：高素云[1] 潘会[1] 依力努尔.米吉提 胡帅帅[1] 

机构地区：[1]新疆师范大学化学化工学院,新疆乌鲁木齐830054

出　　处：《广州化工》2016年第6期42-44,共3页GuangZhou Chemical Industry

基　　金：新疆师范大学大学生创新训练项目(201510762041)

摘　　要：采用水热法制备了Zn O以及Cu^(2+)掺杂Zn O(Cu^(2+):Zn O)纳米粉体,并将其用于光催化降解亚甲基蓝,采用X射线衍射仪(XRD)对其物相进行分析,考察了不同的表面活性剂、Cu^(2+)的掺杂量以及焙烧温度对其结构和光催化降解性能的影响。结果表明:以柠檬酸钠和十六烷基三甲基溴化铵为混合表面活性剂制备的Zn O具有最佳的光催化降解性能,其在光照65 min后,降解率达到96%。Cu^(2+)的掺杂量以及焙烧温度对Cu^(2+):Zn O样品产生较大的影响,随着Cu^(2+)的掺杂量和焙烧温度的增加,Cu^(2+):Zn O样品的光催化降解效果呈现先增加后减小的趋势,当Cu^(2+)掺杂浓度为0.01 mol、焙烧温度为600℃时,Cu^(2+):Zn O样品具有最佳的光催化降解性能,其在光照110 min后,降解率达到93%。Zn O and Cu（2＋）doped Zn O nanomaterials were prepared by the hydrothermal method. The characterization of prepared catalysts was performed by means of XRD,and their photocatalytic degradation of methylene blue was investigated. In addition,the influence of surface active agent,calcination temperature and the amount of Cu（2＋）on the structure and photocatalytic degradation of Zn O were studied in details. The experimental results showed that when the surface active agent was sodium citrate and CTAB,the Zn O exhibited the best photocatalytic degradation,degradation rate reached to 96%. In addition,the amount of Cu（2＋）and the calcination temperature had the great influence on the photocatalytic degradation of Cu（2＋）： Zn O. When the calcination temperature was 600 ℃,and the amount of Cu（2＋）was0. 01,the 0. 01Cu（2＋）： Zn O exhibited the best photocatalytic degradation,degradation rate reached to 93%.

关 键 词：氧化锌 Cu2+掺杂 光催化 水热法 

分 类 号：TB34[一般工业技术—材料科学与工程]