Journal
RSC ADVANCES
Volume 6, Issue 113, Pages 112210-112214Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra23218c
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Funding
- NSFC [51572173]
- STCSM [16JC1402200, 15520720300]
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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 mu m, width of 210 nm and thickness of 3 nm, was obtained by acid treatment of bulk g-C3N4 with HNO3/H2SO4 mixtures. The C/N molar ratio of GCNR (around 0.629) was much smaller than that of pristine g-C3N4 (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-2 production. The average H-2 production rate of GCNR under visible light was 49.4 mu mol h(-1), which was 20 times that of the original catalyst.
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