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Photocatalytic hydrogen generation from a visible-light responsive metal-organic framework system: the impact of nickel phosphide nanoparticles
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Number of Authors: 14
2018 (English)In: Journal of Materials Chemistry A, ISSN 2050-7488, Vol. 6, no 6, p. 2476-2481Article in journal (Refereed) Published
Abstract [en]

Herein, we report the performance of a photocatalytic system based on visible-light active MIL-125-NH2 mixed with nickel phosphide (Ni2P) nanoparticles. This combination boosts the H-2 evolution rate to an outstanding value of 894 mu mol h(-1) g(-1) under visible-light irradiation, which is among the highest H-2 evolution rates reported to date for metal-organic frameworks (MOFs). The H-2 generation rate exhibited by Ni2P/MIL-125-NH2 is almost 3 times higher than that of the Pt/MIL-125-NH2 system, highlighting the impact of the co-catalyst on photocatalytic water splitting. Additionally, our system outperforms the Ni2P/TiO2 system under UV-vis irradiation. The exceptional performance of Ni2P/MIL-125-NH2 is due to the efficient transfer of photogenerated electrons from MIL-125-NH2 to Ni2P, high intrinsic activity of Ni2P and exceptional synergy between them. This system exhibits the highest apparent quantum yields of 27.0 and 6.6% at 400 and 450 nm, respectively, ever reported for MOFs.

Place, publisher, year, edition, pages
2018. Vol. 6, no 6, p. 2476-2481
National Category
Chemical Sciences Environmental Engineering Materials Engineering
Identifiers
URN: urn:nbn:se:su:diva-153618DOI: 10.1039/c7ta10225aISI: 000424466300007OAI: oai:DiVA.org:su-153618DiVA, id: diva2:1189992
Available from: 2018-03-13 Created: 2018-03-13 Last updated: 2018-03-13Bibliographically approved

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Ireland, Christopher P.Mace, AmberSmit, Berend
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Department of Materials and Environmental Chemistry (MMK)
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