Anion–Anion Co‐Doped Monolayer MoS2 for Visible Light Photocatalysis

Anion–Anion Co‐Doped Monolayer MoS2 for Visible Light Photocatalysis IntroductionSemiconductors have drawn much attention in photodegradation of organic compounds, hydrogen storage, and photocatalytic water splitting for hydrogen production. However, the development of photocatalytic industry is restricted by the development of photocatalysts. An ideal catalyst for hydrogen photoproduction by splitting water must have suitable band‐gap and band edge positions, i.e., it should own a band‐gap around 2.0 eV with its valence band maximum (VBM) and conduction band minimum (CBM) straddling the water oxidation and reduction potentials. During the past 40 years, a lot of semiconductors, such as TiO2, SrTiO3, NaTaO3, KNbO3, NaNbO3, etc., have been considered as photocatalysts to split water for hydrogen production, but most of them can only utilize ultraviolet light which accounts for only 4% of the solar energy. Therefore, searching for suitable photocatalysts with band‐gaps around 2.0 eV to further improve solar energy utilization efficiency through making use of visible light accounting for 43% of the solar energy is still full of challenge.As a transition metal dichalogenide, MoS2 has been fabricated and extensively investigated because it is abundant in nature and cheap. The electronic properties of MoS2 strongly depend on the layer thickness and MoS2 is a layered hexagonal structure with S‐Mo‐S layers stacked together through weak http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physica Status Solidi (B) Basic Solid State Physics Wiley

Anion–Anion Co‐Doped Monolayer MoS2 for Visible Light Photocatalysis

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Publisher
Wiley Subscription Services, Inc., A Wiley Company
Copyright
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
ISSN
0370-1972
eISSN
1521-3951
D.O.I.
10.1002/pssb.201700413
Publisher site
See Article on Publisher Site

Abstract

IntroductionSemiconductors have drawn much attention in photodegradation of organic compounds, hydrogen storage, and photocatalytic water splitting for hydrogen production. However, the development of photocatalytic industry is restricted by the development of photocatalysts. An ideal catalyst for hydrogen photoproduction by splitting water must have suitable band‐gap and band edge positions, i.e., it should own a band‐gap around 2.0 eV with its valence band maximum (VBM) and conduction band minimum (CBM) straddling the water oxidation and reduction potentials. During the past 40 years, a lot of semiconductors, such as TiO2, SrTiO3, NaTaO3, KNbO3, NaNbO3, etc., have been considered as photocatalysts to split water for hydrogen production, but most of them can only utilize ultraviolet light which accounts for only 4% of the solar energy. Therefore, searching for suitable photocatalysts with band‐gaps around 2.0 eV to further improve solar energy utilization efficiency through making use of visible light accounting for 43% of the solar energy is still full of challenge.As a transition metal dichalogenide, MoS2 has been fabricated and extensively investigated because it is abundant in nature and cheap. The electronic properties of MoS2 strongly depend on the layer thickness and MoS2 is a layered hexagonal structure with S‐Mo‐S layers stacked together through weak

Journal

Physica Status Solidi (B) Basic Solid State PhysicsWiley

Published: Jan 1, 2018

Keywords: ; ; ; ; ;

References

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