Dy^3+掺杂纳米TiO2光催化材料的制备及应用  

Preparation and application of Dy^3+doped nano TiO2 photocatalytic materials

作　　者：杨在志[1] 朱良怀 徐新宇 周炎 张臻 高丽 Yang Zaizhi;Zhu Lianghuai;Xu Xinyu;Zhou Yan;Zhang Zhen;Gao Li(Department of Materials Engineering,Suqian College,Suqian 223800,China)

机构地区：[1]宿迁学院材料工程系,江苏宿迁223800

出　　处：《现代盐化工》2020年第4期5-6,11,共3页Modern Salt and Chemical Industry

基　　金：宿迁市科技计划项目(Z201740)。

摘　　要：以钛酸四丁酯为钛源,利用溶胶-凝胶法制备Dy^3+掺杂纳米TiO2光催化剂。利用X射线衍射仪、扫描电子显微镜及紫外-可见分光光度计分析光催化剂的物相组织及性能。结果表明,Dy^3+促进了金红石相的形成,得到的双相组织有利于细化晶粒尺寸、提高光催化活性。当Dy^3+掺加量为6%时,最佳降解效率为92%。Dy^3+doped nano TiO2 photocatalytic reagents was prepared by sol-gel method using tetrabutyl titanate as the titanium source.The phase structure and properties of photocatalyst were analyzed by X-ray diffractometer,scanning electron microscope and UV-Vis spectrophotometer.The results show that Dy^3+promotes the formation of rutile phase,and the obtained dual phase structure is beneficial to refine the grain size and improve the photocatalytic activity.When the molar mass of Dy^3+is 6%,the best degradation efficiency is 92%.

关 键 词：光催化 双相组织 金红石相 降解 溶胶-凝胶法 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学] X703[环境科学与工程—环境工程]