Issue 6, 2018

ZIF-derived CoP as a cocatalyst for enhanced photocatalytic H2 production activity of g-C3N4

Abstract

The graphitic carbon nitride (g-C3N4) photocatalyst has drawn widespread attention owing to its excellent photocatalytic hydrogen production activity. For the first time, an efficient g-C3N4-based non-precious-metal photocatalyst, CoP/g-C3N4, with ZIF-67-derived CoP nanoparticles as cocatalysts was prepared by a two-step calcination under different atmospheres. It demonstrates that CoP nanoparticles derived from ZIF-67 can extensively improve the photocatalytic activity of g-C3N4. When the amount of CoP in the photocatalyst was calculated to be 1.42 wt%, a high photocatalytic hydrogen production rate of 201.5 μmol g−1 h−1 was obtained, which was almost 23 times higher than that of bulk g-C3N4 and also surpassed that of bulk g-C3N4 with Pt as the cocatalyst. In addition, electrochemical experiments and photoluminescence spectra indicate that the CoP/g-C3N4 photocatalysts exhibit the advantage of a low recombination rate of photogenerated electrons and holes, resulting in a high rate of electron transport.

Graphical abstract: ZIF-derived CoP as a cocatalyst for enhanced photocatalytic H2 production activity of g-C3N4

Supplementary files

Article information

Article type
Paper
Submitted
10 Feb 2018
Accepted
18 Apr 2018
First published
24 Apr 2018

Sustainable Energy Fuels, 2018,2, 1356-1361

ZIF-derived CoP as a cocatalyst for enhanced photocatalytic H2 production activity of g-C3N4

X. Sun, D. Yang, H. Dong, X. Meng, J. Sheng, X. Zhang, J. Wei and F. Zhang, Sustainable Energy Fuels, 2018, 2, 1356 DOI: 10.1039/C8SE00063H

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