Journal article

Graphitic carbon nitride nanoribbon for enhanced visible-light photocatalytic H2 production

X Bu, Y Bu, S Yang, F Sun, L Tian, Z Peng, P He, J Sun, T Huang, X Wang, G Ding, J Yang, X Xie

RSC Advances | Published : 2016

Abstract

Chemical scissors provide a new vision to manufacture unique carbon nitride nanostructures with improved photocatalytic performance. Herein, graphitic carbon nitride nanoribbon (GCNR), with a typical length of 1.75 μm, width of 210 nm and thickness of 3 nm, was obtained by acid treatment of bulk g-C N with HNO /H SO mixtures. The C/N molar ratio of GCNR (around 0.629) was much smaller than that of pristine g-C N (0.758). It was demonstrated that larger amounts of carbon vacancies on the ultra-thin ribbon structures could contribute to improved electron-hole separation efficiency and excellent photocatalytic H production. The average H production rate of GCNR under visible light was 49.4..

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