Journal
SOLAR RRL
Volume 4, Issue 8, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/solr.202000168
Keywords
phosphorus doping; photocatalysis; photoelectrochemical; polymeric carbon nitride; water oxidation
Funding
- National Natural Science Foundation of China [2191101006, U1905214, 21761132002, 21703040, 21861130353]
- National Key R&D Program of China [2018YFA0209301]
- 111 Project [D16008]
- Chang Jiang Scholars Program of China [T2016147]
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Photoelectrochemical water oxidation by polymeric carbon nitride (PCN) has recently received increasing scientific interest. Herein, phosphorus (P) is doped into PCN (p-PCN) films through in situ polymerization. p-PCN sheets are formed and vertically aligned on a conductive substrate, which is used as a photoanode. The optimal photocurrent density of the photoanode is approximate to 120 mu A cm(-2), which is more than two times that of the undoped one. The improved performance is accounted as the introduction of P in PCN. On the one hand, P doping increases the valence potential of PCN and improves the ability of water oxidation. On the other hand, charge transfer is improved by extra charges from P.
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