The in situ photodeposition fabrication of a NixCoy/g-C3N4 photocatalyst for efficient catalytic hydrogen generation

Abstract

In this work, we have prepared noble-metal-free NiCo/g-C3N4 photocatalysts via an in situ photoreduction method. The Ni23Co1/g-C3N4 photocatalyst showed excellent photocatalytic performance under visible light irradiation with a high H2 generation rate of up to 554 μmol g−1 h−1, 146 and 2.6 times higher than pure g-C3N4 (3.8 μmol g−1 h−1) and 0.5 wt% Pt/CN (216 μmol g−1 h−1), respectively. PL spectra, UV-vis spectra, and photoelectrochemical measurements show that the NiCo bimetal can promote the charge separation of g-C3N4, enhance the absorption capacity for visible light, and improve the hydrogen evolution activity. Therefore, our work provides a feasible solution for the rational construction of g-C3N4-based photocatalysts via using a simple in situ photoreduction technique.

Graphical abstract: The in situ photodeposition fabrication of a NixCoy/g-C3N4 photocatalyst for efficient catalytic hydrogen generation

Supplementary files

Article information

Article type
Paper
Submitted
15 Sep 2021
Accepted
14 Oct 2021
First published
18 Oct 2021

Catal. Sci. Technol., 2021, Advance Article

The in situ photodeposition fabrication of a NixCoy/g-C3N4 photocatalyst for efficient catalytic hydrogen generation

J. Li, B. Luo, X. Zheng, D. Jing and L. Ma, Catal. Sci. Technol., 2021, Advance Article , DOI: 10.1039/D1CY01677F

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