Hierarchical Heterostructure of ZnO@TiO 2 Hollow Spheres for Highly Efficient Photocatalytic Hydrogen Evolution
作者: Yue LiLonglu WangJian LiangFengxian GaoKai YinPei Dai
作者单位: 1School of Materials and Chemical Engineering, Henan University of Engineering
2State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University
刊名: Nanoscale Research Letters, 2017, Vol.12 (1), pp.1-6
来源数据库: Springer Nature Journal
DOI: 10.1186/s11671-017-2304-5
关键词: ZnOTiO 2Hollow sphereHierarchicalHeterojunctionHydrogen production
英文摘要: Abstract(#br)The rational design and preparation of hierarchical nanoarchitectures are critical for enhanced photocatalytic hydrogen evolution reaction (HER). Herein, well-integrated hollow ZnO@TiO 2 heterojunctions were obtained by a simple hydrothermal method. This unique hierarchical heterostructure not only caused multiple reflections which enhances the light absorption but also improved the lifetime and transfer of photogenerated charge carriers due to the potential difference generated on the ZnO–TiO 2 interface. As a result, compared to bare ZnO and TiO 2 , the ZnO@TiO 2 composite photocatalyst exhibited higher hydrogen production rated up to 0.152 mmol h −1 g −1 under simulated solar light. In addition, highly repeated photostability was also observed on the ZnO@TiO 2 composite...
全文获取路径: Springer Nature  (合作)
影响因子:2.524 (2012)

  • hierarchical 分级
  • integrated 综[组,复]合
  • rational 有理数
  • photocatalyst 光催化剂
  • photostability 耐光性
  • hydrothermal 热液的
  • sphere 
  • production 生产
  • potential 
  • light