One-Step Sublimation and Epitaxial Growth of CdS-Cd Heterogeneous Nanoparticles on S-Doped MoO2 Nanosheets for Efficient Visible Light-Driven Photocatalytic H2 Generation

作者：Liu, Hui; Yu, Jiayuan; Chen, Yuke; Zhou, Zigian; Xiong, Guowei; Zeng, Lili; Li, Haidong; Liu, Zhen; Zhao, Lili; Wang, Jingang; Chu, Benli^*; Liu, Hong; Zhou, Weijia^*

来源：ACS applied materials & interfaces, 2020, 12(2): 2362-2369.

DOI：10.1021/acsami.9b17216

• sublimation
• epitaxial growth
• heterostructure
• photocatalytic hydrogen generation
• co-catalyst

As a green, pollution-free, and renewable clean energy source, photocatalytic H-2 production has attracted great attention. Here, epitaxial growth of pyramidal CdS-Cd nanoparticles on S-doped MoO2 nanosheets (CdS-Cd/S-MoO2) was prepared by one-step co-sublimation of CdS and MoO3. The photogenerated electrons of CdS as a photocatalyst are transferred to Cd and S-MoO2 as co-catalysts for H-2 production, which is observed by surface photovoltage (SPV) under visible light irradiation. At last, the obtained CdS-Cd/S-MoO2 presented an efficient photocatalytic performance under the visible light (>420 nm) with a prominent H-2 generation rate of as high as 24.98 mu mol h(-1) mg(-1), which is 11 times higher than that of the CdS-Cd nanoparticles (2.26 mu mol h(-1) mg(-1)), and it is superior than that of the CdS (1.51 mu mol h(-1) mg(-1)).

• 单位
  山东大学; 青岛大学