Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 256, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2019.117812
Keywords
Hydrogen spillover; Three-dimensionally ordered macroporous; HxWO3; Z-scheme heterojunction; Photocatalytic H-2 evolution
Funding
- National Natural Science Foundation of China [U1862105]
- Natural Science Basic Research Plan in Shaanxi Province of China [2017JZ001, 2018KJXX-008, 2019TD-039]
- Fundamental Research Funds for the Central Universities [xjj2018198]
- Science and Technology Project of Henan Province [182106000029]
- K.C. Wong Education Foundation, Hong Kong, China
Ask authors/readers for more resources
The use of hydrogen spillover is considered to be a promising strategy to prepare H containing photocatalyst for enhanced hydrogen evolution performance. In this work, we for the first time employ the hydrogen spillover assisted by in-situ hydrothermal method to successfully synthesize the novel 3DOM-HxWO3/Pt/CdS Z-scheme heterojunction. In this special photocatalytic system, three-dimensionally ordered macroporous (3DOM) structure provide a number of active sites for the mass transfer, and the Z-scheme architecture initiatively induce the electrons migration to achieve a high efficient charge separation. As a result, the as-prepared samples show a prominent apparent quantum efficiency (AQE) of 58.80% (420 nm) and excellent hydrogen production rate of 39.2 mmol g(-1)h(-1), which is 13.5 times as high as that of the pure CdS (AQE of 23.15%). This work provides a new insight into the design and synthesis of porous Z-scheme heterojunction system with excellent solar light adsorption and highly-efficient charge spatial separation.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available