物理化学学报2011，Vol.27Issue(9)：2178-2184,7.
CdS/石墨烯复合材料的制备及其可见光催化分解水产氢性能
Preparation of CdS/Graphene Composites and Photocatalytic Hydrogen Generation from Water under Visible Light Irradiation
摘要
Abstract
CdS/graphene composite photocatalysts were prepared by photocatalytically reducing graphene oxide with CdS nanoparticles in an aqueous ethanol solution. The structure and photoelectrical properties of the resulted materials were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), and transient photocurrent measurements. The photocatalytic activities of the CdS/graphene composites for hydrogen evolution were evaluated under visible light irradiation (λ≥2420 nm). The results show that the graphene oxide can be efficiently reduced by the photogenerated electrons of CdS and thus CdS/graphene composite is formed and it shows strong interactions between CdS and graphene. Compared with CdS, the enhanced photocurrent generation and photocatalytic activity toward hydrogen evolution for the CdS/ graphene composite photocatalysts could be attributed to the ability of graphene to capture and transport electrons, and to promote charge separation.关键词
CdS/石墨烯/光电性能/产氢/可见光Key words
CdS/ Graphene/ Photoelectrical property/ Hydrogen generation/ Visible light分类
化学化工引用本文复制引用
敏世雄,吕功煊..CdS/石墨烯复合材料的制备及其可见光催化分解水产氢性能[J].物理化学学报,2011,27(9):2178-2184,7.基金项目
国家重点基础研究发展规划项目(973) (2007CB613305,2009CB22003),国家高技术研究发展计划项目(863) (2009AA05Z117)和中国科学院太阳能行动计划(KGCX2-YW-390-1,KGCX2-YW-390-3)资助 （973）
