Journal
CHEMSUSCHEM
Volume 12, Issue 12, Pages 2605-2608Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201900291
Keywords
carbon nitrides; phosphorylation; photocatalysis; valence electron density; water splitting
Funding
- National Natural Science Foundation of China [21761132002, 21425309, 21703040, 21861130353]
- National Key R&D Program of China [2018YFA0209301]
- National Basic Research Program of China [2013CB632405]
- 111 Project [D16008]
- Chang Jiang Scholars Program of China [T2016147]
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Overcoming the sluggish kinetics of the water oxidation is the key to a high performance for solar water splitting. Herein, phosphorylated polymeric carbon nitride (PCN) photoanodes were developed and showed enhanced photocurrent densities for solar water splitting. A photocatalytic efficiency of 120 mu A cm(-2) was achieved in the basic solution (1.0 m NaOH) without sacrificial agents. In this system, phosphates were ionically anchored on the surface of PCN, and the modified films showed significantly increased density of valence electrons, and thus promoting photocatalytic efficiency.
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