全文下载：2013040347
谢倩， 邓爱霞， 滕谋勇， 陶绪泉， 陈维龙， 李秀春
（聊城大学 材料科学与工程学院， 山东 聊城 252000）
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。
关键词: 钒酸铋； 复合光催化剂； 水热法； 光催化
中图分类号: O 643文献标志码： A
Synthesis and Photocatalytic Properties of Visible-light-driven BiVO4/GO Composite Photocatalysts
XIE Qian, DENG Ai-xia, TENG Mou-yong, TAO Xu-quan, CHEN Wei-long, LI Xiu-chun
（School of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China）
Abstract: 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 7 showed 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 GO-doped catalysts enhanced photocatalytic activities under visible-light irradiation.
Key words: BiVO4 ; composite photocatalyst; hydrothermal method; photocatalysis
收稿日期： 2012-09-14
基金项目： 聊城大学大学生科技文化创新基金项目（SRT11007CL2）.
作者简介： 谢倩（1977—），女，讲师.
