4.5 Article

0D/2D CoN/g-C3N4 Composites: Structure and Photocatalytic Performance for Hydrogen Production

Journal

JOURNAL OF INORGANIC MATERIALS
Volume 37, Issue 9, Pages 1001-+

Publisher

SCIENCE PRESS
DOI: 10.15541/jim20210806

Keywords

non-noble metal; CoN; cocatalyst; photocatalysis; hydrogen production

Funding

  1. National Natural Science Foundation of China [22108110]
  2. Jiangsu Funds for Distinguished Young Scientists [BK20190045]
  3. Postgraduate Research & Practice Innovation Program of Jiangsu Province [KYCX21_3391]
  4. China Postdoctoral Science Foundation [2021M691305]
  5. Jiangsu Province Postdoctoral Science Foundation [2021K079A]

Ask authors/readers for more resources

In this study, the influence of the close interface between non-noble metal cocatalyst CoN and g-C3N4 0D/2D on the performance of photocatalytic hydrogen production was explored. The results showed that the support of non-noble metal cocatalyst CoN can effectively improve the photocatalytic hydrogen production of 2D g-C3N4. The compact 0D/2D interface is favorable for the rapid transmission of photogenerated electrons.
In the photocatalytic hydrogen production reaction, the introduction of cocatalyst to promote the rapid transfer of photogenerated electrons is an effective way to improve the photocatalytic activity. At present, the most efficient cocatalysts are mainly precious metals, greatly restricting the use of this method. In this study, influence of the close interface between non-noble metal cocatalyst CoN and g-C3N4 0D/2D on the performance of photocatalytic hydrogen production was explored. The results showed that the support of non-noble metal cocatalyst CoN can effectively improve the photocatalytic hydrogen production of 2D g-C3N4, and the support amount also has an positive effect on its activity. The compact 0D/2D interface is favorable for the rapid transmission of photogenerated electrons. Photocatalytic efficiency of 10% CoN/2D g-C3N4 composite reached 403.6 mu mol.g(-1).h(-1), 20 times of that of 2D g-C3N4 monomer, which was comparable to that of noble metal cocatalyst. As a hydrogen evolution cocatalyst, loaded CoN can significantly promote the charge transfer process, thus greatly improving the activity of photocatalytic hydrogen evolution.

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