Journal
ADVANCED ENERGY MATERIALS
Volume 7, Issue 17, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201700025
Keywords
2D hybrids; hydrogen evolution; photocatalysis; water splitting; Z-scheme
Categories
Funding
- National Nature Science Foundation of China [21476097]
- Six talent peaks project in Jiangsu Province [2014-JNHB-014]
- U.S. Air Force BRI Grant [FA9550-14-1-0268]
Ask authors/readers for more resources
Photocatalysis is the most promising method for achieving artificial photosynthesis, but a bottleneck is encountered in finding materials that could efficiently promote the water splitting reaction. The nontoxicity, low cost, and versatility of photocatalysts make them especially attractive for this application. This study demonstrates that small amounts of alpha-Fe2O3 nanosheets can actively promote exfoliation of g-C3N4, producing 2D hybrid that exhibits tight interfaces and an all-solid-state Z-scheme junction. These nanostructured hybrids present a high H-2 evolution rate >3 x 10(4) mu mol g(-1) h(-1) and external quantum efficiency of 44.35% at lambda = 420 nm, the highest value so far reported among the family of g-C3N4 photocatalysts. Besides effectively suppressing the recombination of electron-hole pairs, this Z-scheme junction also exhibits activity toward overall water splitting without any sacrificial donor. The proposed synthetic route for controlled production of 2D g-C3N4-based structures provides a scalable alternative toward the development of highly efficient and active photocatalysts.
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