物理化学学报2011，Vol.27Issue(6)：1482-1486,5.
还原氧化石墨烯修饰Bi2WO6提高其在可见光下的光催化性能
Reduced Graphene Oxide-Modified Bi2WO6 as an Improved Photocatalyst under Visible Light
摘要
Abstract
A new and improved photocatalyst, reduced graphene oxide (RGO)-modified Bi2WO6 (Bi2WO6-RGO), was synthesized by a two-step hydrothermal process. The effect of RGO content on photoactivity was investigated and the optimum mass ratio of RGO to Bi2WO6 was determined to be 1 %. Based on scanning electron microscopic study, RGO does not change the structure and morphology of the Bi2WO6 photocatalyst. Therefore, the improvement in the photoactivity of the Bi2WO6-RGO composite is undoubtedly ascribed to RGO. The presence of graphene can facilitate the dissociation of photogenerated excitons, which leads to more O·-2 to degrade dye pollutants like rhodamine-B (RhB). Moreover, the efficient adsorption of RhB molecules on graphene is another reason for the improved photoactivity.关键词
Bi2WO6/石墨烯/水热法/光催化剂/有机染料污染物Key words
Bi2WO6/Graphene/Hydrothermal process/Photocatalyst/Dye pollutant分类
化学化工引用本文复制引用
应红,王志永,郭政铎,施祖进,杨上峰..还原氧化石墨烯修饰Bi2WO6提高其在可见光下的光催化性能[J].物理化学学报,2011,27(6):1482-1486,5.基金项目
国家自然科学基金(20771010,20801052),国家重点基础研究发展规划项目(973)(2011CB932601)国家高技术研究发展计划项目(863)(2007AA03Z311)和中国科学院百人计划(A1010)资助The project was supported by the National Natural Science Foundation of China (20771010,20801052),National Key Basic Research Program of China (973) (2011CB932601),National High Technology Research and Development Program of China (863) (2007AA03Z311),and "100 Talents Program of Chinese Academy of Sciences" (A 1010). （20771010,20801052）
