1. Noble-metal-free bimetallic nitride decorated CdS nanorods for photocatalytic hydrogen generation.
- Author
-
Chen, Lu, Xia, Yuzhou, Shi, Jiale, Huang, Xiaohui, Liu, Xiyao, Yan, Guiyang, and Huang, Renkun
- Subjects
INTERSTITIAL hydrogen generation ,NANORODS ,NITRIDES ,CADMIUM sulfide ,SURFACE preparation ,HETEROJUNCTIONS ,OPEN-ended questions - Abstract
Developing highly active and stable non-noble-metal cocatalyst-decorated semiconductors is desirable for the practical application of photocatalysis, which remains an open question. Herein, we report transition-metal nitride (Ni
3 FeN) loaded cadmium sulfide (CdS) nanorods prepared through a simple hydrothermal method and surface treatment with NH3 . The as-prepared photocatalyst Ni3 FeN (3 wt%)/CdS showed a hydrogen evolution rate of 4.6 mmol g−1 h−1 , which was 23.8 and 6.8 fold higher than those of CdS and Pt (1 wt%)/CdS, respectively. The Ni3 FeN/CdS sample exhibited remarkable stability for seven consecutive cycles of photocatalytic tests lasting 21 hours. It was confirmed through Kelvin probe measurements that a Schottky junction between Ni3 FeN and CdS gave rise to the inhibited recombination of photogenerated carriers, which benefited the photocatalytic HER performance. [ABSTRACT FROM AUTHOR]- Published
- 2024
- Full Text
- View/download PDF