“蝉蛹状”Ce掺杂纳米ZnO的制备及光催化性能研究  

Preparation of cicada pupa-like cerium doped zinc oxide and its photocatalytic performance

作　　者：刘俊莉[1] 惠爱平 李妍[1] 刘辉[1] 

机构地区：[1]陕西科技大学材料科学与工程学院,陕西西安710021 [2]陕西科技大学环境科学与工程学院,陕西西安710021

出　　处：《陕西科技大学学报（自然科学版）》2016年第5期60-64,76,共6页Journal of Shaanxi University of Science & Technology

基　　金：陕西省科技厅自然科学基础研究计划项目(2014JQ6209);西安市科技计划项目(CXY1430(1));陕西科技大学博士科研启动基金项目(BJ13-23)

摘　　要：采用离子掺杂的技术方法,通过微波辅助水热法成功制备了"蝉蛹状"Ce掺杂ZnO光催化剂.利用X射线衍射仪(XRD)、场发射扫描电子显微镜(SEM)和紫外可见吸收光谱仪(UV-vis)对所得样品的晶相结构、表面形貌和光吸收性能进行表征.考察了Ce掺杂量对ZnO形貌和光催化性能的影响.结果表明:当Ce掺杂量为1.0%时,所得样品为"蝉蛹状",且其具有均匀的尺寸、最小的带隙宽度(3.02eV)和高的光催化活性,在150 W紫外光下,光照80min对罗丹明B溶液(10mg/L)的降解率达到98.92%.Cicada pupa-like cerium doped ZnO nanoparticles were prepared by microwave-assisted hydrothermal method in this research.The phase structure,morphology and optical absorption property of the obtained samples were characterized by X-ray powder diffractometer（XRD）,field-emission scanning electron microscopy（SEM）and ultraviolet visible spectrophotometry（UV-vis）.The effect of cerium contents on the morphology and the photocatalytic performance of the obtained ZnO had been discussed in detail.The results indicate the obtained ZnO has cicada pupa-like shape,uniform size,the smallest band gap（3.02eV）with the cerium doping concentration is 1.0%.Besides,it also has the highest photocatalytic degradation activity（98.92%）for rhodamine B solutions（10mg/L）under 150 W UV-vis light illumination 80 min.

关 键 词：ZNO CE掺杂 蝉蛹状 光催化性能 

分 类 号：TQ050.43[化学工程]