Journal
CHEMSUSCHEM
Volume 12, Issue 14, Pages 3320-3325Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201900979
Keywords
carbon nitride; hydrogen evolution; photocatalysis; self-assembly; supramolecular chemistry
Funding
- National Natural Science Foundation of China [21802022, 21425309, 21761132002, 21861130353]
- National Key Technologies R & D Program of China [2018YFA0209301]
- 111 Project [D16008]
- Chang Jiang Scholars Program of China [T2016147]
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Supramolecular pre-assembly by design is an effective strategy to adapt the physicochemical properties of polymeric carbon nitrides (PCNs) to improve their solar conversion performance. A new supramolecular preorganization protocol, which employs H2O as the self-assembly medium and sodium persulfate as a modifier, is proposed to modulate the textural and photoelectronic features of PCNs for efficient visible-light H-2 evolution. Sodium persulfate is revealed to precisely tailor the final carbon nitride polymers with unusual porous layered structures and promoted charge separation and migration kinetics. As a result, the modulated PCNs with optimized structures show a greatly enriched activity for photocatalytic H-2 generation compared to the analogous materials derived from melamine without the modifier.
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