微波制备Co2+掺杂BiOBr催化剂及其光催化性能  

Preparation of Co2+-doped BiOBr Catalyst with Microwave and its Photocatalytic Performance

作　　者：甘蒙蒙 张淑娟[2] GAN Mengmeng;ZHANG Shujuan(College of Chemical Engineering and Materials Science,Tianjin University of Science & Technology,Tianjin 300457,China;College of Science,Tianjin University of Science & Technology,Tianjin 300457,China)

机构地区：[1]天津科技大学化工与材料学院,天津300457 [2]天津科技大学理学院,天津300457

出　　处：《天津科技大学学报》2019年第3期38-42,共5页Journal of Tianjin University of Science & Technology

摘　　要：采用微波法制备了BiOBr及Co^2+掺杂的BiOBr光催化剂,利用X射线衍射(XRD)、扫描电镜(SEM)、荧光光谱(PL)以及紫外–可见吸收光谱(UV-vis)对制备的催化剂材料进行表征,并以罗丹明B为目标污染物对催化剂的光催化性能进行研究.结果表明Co^2+掺杂能够有效地提高BiOBr的光催化活性,这主要是因为Co2+的掺杂有效地提高了BiOBr光催化剂中光生电子–空穴的分离效率.BiOBr and Co^2+-doped BiOBr photocatalysts were prepared with microwave method.Samples were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),ultraviolet-visible(UV-vis)absorption spectroscopy and photoluminescence spectra(PL).In order to examine the photocatalytic activity,the photodegradation of rhodamine B(RhB)under visible light irradiation was studied.Results show that Co^2+-doped BiOBr could enhance the photocatalytic activity of BiOBr effectively.The results could be mainly attributed to the higher separation efficiency of photo-induced electrons and holes.

关 键 词：微波 BiOBr 光催化活性 罗丹明B 

分 类 号：TQ426[化学工程]