NiS2 Co-catalyst decoration on CdLa2S4 nanocrystals for efficient photocatalytic hydrogen generation under visible light irradiation

作者：Yuan Yu Peng; Cao Shao Wen; Yin Li Sha; Xu Lin; Xue Can^*

来源：International Journal of Hydrogen Energy, 2013, 38(18): 7218-7223.

DOI：10.1016/j.ijhydene.2013.03.169

• Photocatalysis
• Water splitting
• Hydrogen evolution
• Solar energy conversion
• Heterojunction

NiS2 nanoparticles as noble metal-free co-catalysts were deposited onto the CdLa2S4 nanocrystals through a hydrothermal process. The loading of NiS2 co-catalyst resulted in remarkable enhancement for H-2 production over the CdLa2S4 photocatalyst under visible light irradiation. The optimal hybrid photocatalyst with 2 wt% NiS2 loading exhibited a H-2 production rate of 2.5 mmol h(-1) g(-1), which was more than 3 times higher than that of the pristine CdLa2S4 photocatalyst. The promoted photocatalytic H-2 production by NiS2-loading is attributed to the enhanced separation of photogenerated electrons and holes as well as the activation effect of NiS2 for H-2 evolution.

• 出版日期2013-6-18
• 单位安徽大学; 南阳理工学院