BiVO_4/GO复合光催化剂的制备及光催化性能研究  

Synthesis and Photocatalytic Properties of Visible-light-driven BiVO_4/GO Composite Photocatalysts

作　　者：谢倩[1] 邓爱霞[1] 滕谋勇[1] 陶绪泉[1] 陈维龙[1] 李秀春[1] 

机构地区：[1]聊城大学材料科学与工程学院,山东聊城252000

出　　处：《青岛科技大学学报（自然科学版）》2013年第4期347-351,共5页Journal of Qingdao University of Science and Technology:Natural Science Edition

基　　金：聊城大学大学生科技文化创新基金项目(SRT11007CL2)

摘　　要：采用水热的方法,通过调控pH值,制备了具有不同晶型和晶体形貌的BiVO4/GO(氧化石墨)复合可见光光催化剂,利用XRD、SEM、FT-IR和UV-Vis对样品进行表征。XRD分析显示,pH=7的条件下光催化剂呈现纯度较高的单斜白钨矿结构。以甲基橙(MO)的可见光催化降解反应为模型反应,研究了催化剂的可见光催化性能。结果表明,经GO改性的催化剂的催化能力比纯BiVO4有极大程度的提高。BiVO4/GO（grapheme oxide）with different crystalline structure and morphology were prepared under different PH values by a hydrothermal process.TheBiVO4/GO samples were characterized by means of XRD,SEM,FTIR and UV-Vis.The XRD showed that sample prepared under PH value of 7showed the highly crystalline monoclinic scheelite structure.The photocatalytic activity was investigated using methyl orange（MO）as a photocatalytic degradation model reactant.Results showed that the GOdoped catalysts enhanced photocatalytic activities under visible-light irradiation.

关 键 词：钒酸铋 复合光催化剂 水热法 光催化 

分 类 号：O643[理学—物理化学]