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Facile synthesis of highly active fluorinated ultrathin graphitic carbon nitride for photocatalytic H 2 evolution using a novel NaF etching strategy.

Yanfei LiuJunjie WangChaochuang YinHuazhen DuanShifei KangLifeng Cui
Published in: RSC advances (2018)
Although graphitic carbon nitride (GCN) has been intensively studied in photocatalytic research, its performance is still hindered by its inherently low photo-absorption and inefficient charge separation. Herein, we report a simple NaF solution treating method to produce fluorinated and alkaline metal intercalated ultrathin GCN with abundant in-plane pores and exposed active edges, and therefore an enhanced number of actives sites. Compared to bulk GCN, NaF treated GCN has a larger specific surface area of 81.2 m 2 g -1 and a relatively narrow band gap of 2.60 eV, which enables a 6-fold higher photocatalytic rate of hydrogen evolution.
Keyphrases
  • visible light
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