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Modulation of Polymeric Carbon Nitrides through Supramolecular Preorganization for Efficient Photocatalytic Hydrogen Generation
Author(s) -
Yin Ling,
Wang Sibo,
Yang Can,
Lyu Shihuan,
Wang Xinchen
Publication year - 2019
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201900979
Subject(s) - carbon nitride , persulfate , melamine , supramolecular chemistry , graphitic carbon nitride , photocatalysis , nitride , carbon fibers , materials science , chemical engineering , chemistry , nanotechnology , catalysis , molecule , organic chemistry , layer (electronics) , composite number , engineering , composite material
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 H 2 O 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.