YBO3微米球的水热合成及光催化性能  

Hydrothermal Synthesis and Photocatalytic Performance of YBO3 Microspheres

作　　者：刘剑[1,2] 赵文武 郁建元[1,2] 刘进强 董秀珍[1,2] 王秀文 LIU Jian;ZHAO Wen-wu;YU Jian-yuan;LIU Jin-qiang;DONG Xiu-zhen;WANG Xiu-wen(Department of Environmental and Chemical Engineering,Tangshan College,Tangshan 063000,Hebei,China;Key Laboratory of Micro-Nano-Materials Preparation and Application of Tangshan City,Tangshan 063000,Hebei,China)

机构地区：[1]唐山学院环境与化学工程系,河北唐山063000 [2]唐山市微纳米材料制备及应用重点实验室,河北唐山063000

出　　处：《精细化工》2019年第12期2491-2497,共7页Fine Chemicals

基　　金：河北省高等学校科学技术研究青年基金项目(QN2018306);河北省高等学校青年拔尖人才计划项目(BJ2018203);唐山市应用基础研究计划项目(17130258a,17130259a)

摘　　要：采用水热法制备了YBO3微米球。利用XRD、FESEM、TEM、XPS和UV-Vis等对样品的结构、形貌和光学性能进行了表征。在紫外光照射下,采用CHI660E电化学系统研究了样品的电化学性能,并通过罗丹明B的降解反应考察了样品的光催化活性。结果表明:YBO3微米球由纳米片自组装形成;与YBO3微米颗粒相比,YBO3微米球的吸收光谱发生明显红移,在紫外光范围内有较强的吸收;并且YBO3微米球具有较高的光电流和较小的载流子迁移阻力,光催化活性明显提高,40min对罗丹明B的降解率达到90.9%。A series of YBO3 samples were obtained by hydrothermal method.The microstructures,morphologies and optical properties of the samples were characterized by XRD,SEM,TEM,XPS and UV-Vis.The photocurrent and electrochemical impedance experimental were studied by CHI660 E electrochemical system and the photocatalytic activities of the samples were tested by the photocatalytic degradation of RhB.The results demonstrated that the YBO3 microspheres were self-assembled by nanosheets.Compared with YBO3 microparticles,the YBO3 microspheres exhibited an obvious red shift and had strong absorption capability in an ultraviolet-visible light region.In addition,the YBO3 microspheres had higher photocurrent and less carrier migration resistance.So,YBO3 microspheres exhibited excellent catalytic activities to photodegrade RhB under UV light irradiation.The degradation rate of RhB reached 90.9%under 40 min irradiation.

关 键 词：YBO3微米球 光催化 硼酸盐 光电流 水处理技术 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学]