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Issue 25, 2020
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Toward enhanced photocatalytic activity of graphite carbon nitride through rational design of noble metal-free dual cocatalysts

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Abstract

The g-C3N4-MoS2-M(OH)x ternary heterostructures were designed and fabricated for the first time. The embedding of noble-metal-free MoS2-M(OH)x dual cocatalysts over g-C3N4 nanosheets led to obvious synergistic effect for improving the transport as well as utilization efficiency of photo-generated charge carriers. Consequently, the optimal ternary heterostructure (g-C3N4-MoS2-Ni(OH)2) exhibited photocatalytic hydrogen production activity 4.5 times larger than the sum of the photocatalytic HER activity of g-C3N4-MoS2 and g-C3N4-Ni(OH)2. More significantly, even in the absence of the sacrificial agent, the g-C3N4-MoS2-Ni(OH)2 ternary heterostructure exhibited a photocatalytic HER activity of 0.3 mmol h−1 g−1 with considerable H2O2 production under UV-visible light.

Graphical abstract: Toward enhanced photocatalytic activity of graphite carbon nitride through rational design of noble metal-free dual cocatalysts

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Supplementary files

Article information


Submitted
26 Nov 2019
Accepted
26 May 2020
First published
27 May 2020

Nanoscale, 2020,12, 13829-13837
Article type
Paper

Toward enhanced photocatalytic activity of graphite carbon nitride through rational design of noble metal-free dual cocatalysts

L. Qin, Y. Lin, Y. Dou, Y. Yang, K. Li, T. Li and F. Liu, Nanoscale, 2020, 12, 13829
DOI: 10.1039/C9NR10044J

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