Journal
CHEMSUSCHEM
Volume 8, Issue 8, Pages 1404-1410Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201403278
Keywords
graphitic carbon nitrides; mesoporosity; hydrogen evolution; tungsten oxide; z-scheme
Funding
- BMBF
- National Basic Research Program of China [2013CB632405]
- National Natural Science Foundation of China [21033003, 21173043]
- Department of Education of Fujian Province in China
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Composites of mesoporous polymeric carbon nitride and tungsten(VI) oxide show very high photocatalytic activity for the evolution of hydrogen from water under visible light and in the presence of sacrificial electron donors. Already addition of very small amounts of WO3 yields up to a twofold increase in the efficiency when compared to bulk carbon nitrides and their composites and more notably even to the best reported mesoporous carbon nitride-based photocatalytic materials. The higher activity can be attributed to the high surface area and synergetic effect of the carbon nitrides and the WO3 resulting in improved charge separation through a photocatalytic solid-state Z-scheme mechanism.
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