Highly efficient and stable hydrogen evolution from water with CdS as photosensitizer-A noble-metal-free system

Jian Ping Zou*, Si Liang Lei, Jian Yu, Sheng Lian Luo, Xu Biao Luo, Xing Hua Tang, Wei Li Dai, Jing Sun, Guo Cong Guo, Chak Tong AU

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Citations (Scopus)

Abstract

CdS/Ba1-xZnxTiO3 heterostructured photocatalysts were developed as a highly efficient and stable system for photocatalytic evolution of hydrogen from water splitting. In the system, CdS not only functions as photosensitizer to absorb visible light, but also participates with Ba1-xZnxTiO3 for the generation of heterojunctions that block the recombination of photogenerated electrons and holes. The photocatalysts show excellent activity and stability, giving a high H2 production rate of 1473μmolh-1g-1 under the irradiation of simulated solar light in a test period of 480h without loading any noble metal as cocatalyst or any reagents for regeneration. This study demonstrates that the development of CdS nanoparticles as photosensitizer is feasible for the photocatalytic H2 production.

Original languageEnglish
Pages (from-to)466-471
Number of pages6
JournalApplied Catalysis B: Environmental
Volume150-151
DOIs
Publication statusPublished - 5 May 2014

Scopus Subject Areas

  • Catalysis
  • Environmental Science(all)
  • Process Chemistry and Technology

User-Defined Keywords

  • Heterostructured
  • Hydrogen production
  • Photocatalyst
  • Photosensitizer
  • Water splitting

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