分等级花状BiOBr的制备及光催化活性研究  

Preparation of hierarchical flower-like BiOBr and study on photocatalytic activity

作　　者：周倩婧 赵庆怀 姬晓旭[1] 张丹 王辉 潘振豪 祁琳惠 邱健茹 ZHOU Qianjing;ZHAO Qinghuai;JI Xiaoxu;ZHANG Dan;WANG Hui;PAN Zhenhao;QI Linhui;QIU Jianru(School of Physics and Electronic Engineering,Nanyang Normal University,Nanyang 473061,China;Infrastructure Department,Nanyang Normal University,Nanyang 473061,China)

机构地区：[1]南阳师范学院物理与电子工程学院,河南南阳473061 [2]南阳师范学院基建处,河南南阳473061

出　　处：《南阳师范学院学报》2018年第6期16-19,共4页Journal of Nanyang Normal University

基　　金：河南省科技攻关项目(182102210466)

摘　　要：利用简单的溶剂热法成功制备出分等级花状Bi OBr.利用X射线衍射(XRD)、扫描电子显微镜(SEM)、氮气吸附-脱附分析和紫外-可见漫反射光谱(UV-Vis DRS)对样品的晶体结构、形貌、孔结构和光学性质进行了表征.实验结果表明,制备的Bi OBr为纳米片组装成的微米花.在室温下研究了花状Bi OBr对罗丹明B的光催化活性,结果表明该样品可见光照射下能有效降解罗丹明B,25 min降解率可达到100%.The hierarchical flower-like BiOBr were successfully synthesized by a facile solvothermal method.The crystal structure,morphology,pore structure and optical properties of as-fabricated sample were characterized systematically by X-ray diffraction(XRD),scanning electron microscopy(SEM),brunauer-emmett-teller(BET)and UV-vis diffuse reflectance spectroscopy(DRS).The results indicated that the obtained BiOBr sample was hierarchical microflowers self-assembling with ultrathin nanosheets.The photocatalytic activity of the obtained sample for RhB under the visible irradiation was investigated.The results reveal that the sample exhibits a significantly enhanced photocatalytic performance,and the degradation rate reaches 100%in 25 minutes.

关 键 词：BiOBr 分等级结构 溶剂热法 光催化活性 

分 类 号：O643[理学—物理化学]