Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 6, Issue 39, Pages 18979-18986Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta06029k
Keywords
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Funding
- National Key Technologies R&D Program of China [2014BAC13B03]
- National Natural Science Foundation of China [21473031, 21673041]
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As a promising alternative to Pt, molybdenum carbides have been widely used in many domains. Herein, we develop a co-catalyst with a 2D lamellar structure, in which MoC quantum dots are embedded in a carbon membrane uniformly (MoC-QDs/C). With the introduction of MoC-QDs/C, the flower-like MoC-QDs/C/ZnIn2S4 composite shows an unprecedented enhancement of photocatalytic performance, compared with that of pure ZnIn2S4. The optimal hydrogen generation rate of MoC-QDs/C/ZnIn2S4 is almost 48 times as much as that of pure ZnIn2S4. Besides, the enhancement mechanism is also demonstrated that MoC-QDs/C can accelerate carriers' separation and decrease the overpotential of hydrogen evolution effectively during the photocatalytic water splitting process. Moreover, this study not only provides a high-efficiency and potential co-catalyst for photocatalytic H-2 production, but also is expected to come up with a new design scheme for a transition metal carbide-containing co-catalyst.
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