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Issue 27, 2019
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Self-Z-scheme plasmonic tungsten oxide nanowires for boosting ethanol dehydrogenation under UV-visible light irradiation

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Abstract

Nonstoichiometric tungsten oxides (WO3−x) with abundant oxygen vacancies were synthesized and used as nonmetallic plasmonic photocatalysts to promote ethanol dehydrogenation under UV-visible light irradiation. Plasmonic WO3−x have unique electronic structures that act as Z-scheme heterostructures. UV-excited photoelectrons were injected into the conduction band of WO3−x, stabilizing the free electron density and boosting plasmonic hot electron generation for ethanol dehydrogenation. The synergetic effect of UV and visible light excitations greatly enhances the aldehyde generation to 2696 μmol g−1 (3 hours) with a high selectivity of 91%, which is 74-fold and 12-fold higher than those obtained under only UV or visible light irradiation, respectively.

Graphical abstract: Self-Z-scheme plasmonic tungsten oxide nanowires for boosting ethanol dehydrogenation under UV-visible light irradiation

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Article information


Submitted
02 May 2019
Accepted
01 Jun 2019
First published
03 Jun 2019

Nanoscale, 2019,11, 12774-12780
Article type
Communication

Self-Z-scheme plasmonic tungsten oxide nanowires for boosting ethanol dehydrogenation under UV-visible light irradiation

C. Lu, J. Li, G. Chen, B. Li and Z. Lou, Nanoscale, 2019, 11, 12774
DOI: 10.1039/C9NR03741A

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