Engineering β-ketoamine covalent organic frameworks for photocatalytic overall water splitting
Harbin University of Science and Technology · Heilongjiang University · +1 more institution
Abstract
Abstract Covalent organic frameworks (COFs) are an emerging type of crystalline and porous photocatalysts for hydrogen evolution, however, the overall water splitting activity of COFs is rarely known. In this work, we firstly realized overall water splitting activity of β -ketoamine COFs by systematically engineering N-sites, architecture, and morphology. By in situ incorporating sub-nanometer platinum (Pt) nanoparticles co-catalyst into the pores of COFs nanosheets, both Pt@TpBpy-NS and Pt@TpBpy-2-NS show visible-light-driven overall water splitting activity, with the optimal H 2 and O 2 evolution activities of 9.9 and 4.8 μmol in 5 h for Pt@TpBpy-NS, respectively, and a maximum solar-to-hydrogen efficiency…
Citation impact
- FWCI
- 15.89
- Percentile
- 100%
- References
- 51
Authors
9Topics & keywords
- Water splitting
- Photocatalysis
- Catalysis
- Covalent bond
- Chemistry
- Nanotechnology
- Covalent organic framework
- Chemical engineering
- Clean water and sanitation