MoS                         2                         -coated microspheres of self-sensitized carbon nitride for efficient photocatalytic hydrogen generation under visible light irradiation

Quan Gu; Huaming Sun; Zunyuan Xie; Ziwei Gao; Can Xue

doi:10.1016/j.apsusc.2016.11.206

MoS ₂ -coated microspheres of self-sensitized carbon nitride for efficient photocatalytic hydrogen generation under visible light irradiation

Quan Gu, Huaming Sun, Zunyuan Xie, Ziwei Gao, Can Xue^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

68 Citations (Scopus)

Abstract

We have successfully coated the self-sensitized carbon nitride (SSCN) microspheres with a layer of MoS ₂ through a facile one-pot hydrothermal method by using (NH ₄ ) ₂ MoS ₄ as the precursor. The resulted MoS ₂ -coated SSCN photocatalyst appears as a core-shell structure and exhibits enhanced visible-light activities for photocatalytic H ₂ generation as compared to the un-coated SSCN and the standard g-C ₃ N ₄ reference with MoS ₂ coating. The photocatalytic test results suggest that the oligomeric s-triazine dyes on the SSCN surface can provide additional light-harvesting capability and photogenerated charge carriers, and the coated MoS ₂ layer can serve as active sites for proton reduction towards H ₂ evolution. This synergistic effect of surface triazine dyes and MoS ₂ coating greatly promotes the activity of carbon nitride microspheres for vishible-light-driven H ₂ generation. This work provides a new way of future development of low-cost noble-metal-free photocatalysts for efficient solar-driven hydrogen production.

Original language	English
Pages (from-to)	1808-1815
Number of pages	8
Journal	Applied Surface Science
Volume	396
DOIs	https://doi.org/10.1016/j.apsusc.2016.11.206
Publication status	Published - Feb 28 2017
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016 Elsevier B.V.

ASJC Scopus Subject Areas

General Chemistry
Condensed Matter Physics
General Physics and Astronomy
Surfaces and Interfaces
Surfaces, Coatings and Films

Keywords

Dye sensitization
Graphitic carbon nitride
Hydrogen generation
Molybdenum disulfide
Photocatalysis

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.apsusc.2016.11.206

Cite this

Gu, Q., Sun, H., Xie, Z., Gao, Z., & Xue, C. (2017). MoS ₂ -coated microspheres of self-sensitized carbon nitride for efficient photocatalytic hydrogen generation under visible light irradiation Applied Surface Science, 396, 1808-1815. https://doi.org/10.1016/j.apsusc.2016.11.206

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title = " MoS 2 -coated microspheres of self-sensitized carbon nitride for efficient photocatalytic hydrogen generation under visible light irradiation ",

abstract = " We have successfully coated the self-sensitized carbon nitride (SSCN) microspheres with a layer of MoS 2 through a facile one-pot hydrothermal method by using (NH 4 ) 2 MoS 4 as the precursor. The resulted MoS 2 -coated SSCN photocatalyst appears as a core-shell structure and exhibits enhanced visible-light activities for photocatalytic H 2 generation as compared to the un-coated SSCN and the standard g-C 3 N 4 reference with MoS 2 coating. The photocatalytic test results suggest that the oligomeric s-triazine dyes on the SSCN surface can provide additional light-harvesting capability and photogenerated charge carriers, and the coated MoS 2 layer can serve as active sites for proton reduction towards H 2 evolution. This synergistic effect of surface triazine dyes and MoS 2 coating greatly promotes the activity of carbon nitride microspheres for vishible-light-driven H 2 generation. This work provides a new way of future development of low-cost noble-metal-free photocatalysts for efficient solar-driven hydrogen production.",

keywords = "Dye sensitization, Graphitic carbon nitride, Hydrogen generation, Molybdenum disulfide, Photocatalysis",

author = "Quan Gu and Huaming Sun and Zunyuan Xie and Ziwei Gao and Can Xue",

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doi = "10.1016/j.apsusc.2016.11.206",

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Gu, Q, Sun, H, Xie, Z, Gao, Z & Xue, C 2017, ' MoS ₂ -coated microspheres of self-sensitized carbon nitride for efficient photocatalytic hydrogen generation under visible light irradiation ', Applied Surface Science, vol. 396, pp. 1808-1815. https://doi.org/10.1016/j.apsusc.2016.11.206

MoS ₂ -coated microspheres of self-sensitized carbon nitride for efficient photocatalytic hydrogen generation under visible light irradiation . / Gu, Quan; Sun, Huaming; Xie, Zunyuan et al.
In: Applied Surface Science, Vol. 396, 28.02.2017, p. 1808-1815.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - MoS 2 -coated microspheres of self-sensitized carbon nitride for efficient photocatalytic hydrogen generation under visible light irradiation

AU - Gu, Quan

AU - Sun, Huaming

AU - Xie, Zunyuan

AU - Gao, Ziwei

AU - Xue, Can

PY - 2017/2/28

Y1 - 2017/2/28

N2 - We have successfully coated the self-sensitized carbon nitride (SSCN) microspheres with a layer of MoS 2 through a facile one-pot hydrothermal method by using (NH 4 ) 2 MoS 4 as the precursor. The resulted MoS 2 -coated SSCN photocatalyst appears as a core-shell structure and exhibits enhanced visible-light activities for photocatalytic H 2 generation as compared to the un-coated SSCN and the standard g-C 3 N 4 reference with MoS 2 coating. The photocatalytic test results suggest that the oligomeric s-triazine dyes on the SSCN surface can provide additional light-harvesting capability and photogenerated charge carriers, and the coated MoS 2 layer can serve as active sites for proton reduction towards H 2 evolution. This synergistic effect of surface triazine dyes and MoS 2 coating greatly promotes the activity of carbon nitride microspheres for vishible-light-driven H 2 generation. This work provides a new way of future development of low-cost noble-metal-free photocatalysts for efficient solar-driven hydrogen production.

AB - We have successfully coated the self-sensitized carbon nitride (SSCN) microspheres with a layer of MoS 2 through a facile one-pot hydrothermal method by using (NH 4 ) 2 MoS 4 as the precursor. The resulted MoS 2 -coated SSCN photocatalyst appears as a core-shell structure and exhibits enhanced visible-light activities for photocatalytic H 2 generation as compared to the un-coated SSCN and the standard g-C 3 N 4 reference with MoS 2 coating. The photocatalytic test results suggest that the oligomeric s-triazine dyes on the SSCN surface can provide additional light-harvesting capability and photogenerated charge carriers, and the coated MoS 2 layer can serve as active sites for proton reduction towards H 2 evolution. This synergistic effect of surface triazine dyes and MoS 2 coating greatly promotes the activity of carbon nitride microspheres for vishible-light-driven H 2 generation. This work provides a new way of future development of low-cost noble-metal-free photocatalysts for efficient solar-driven hydrogen production.

KW - Dye sensitization

KW - Graphitic carbon nitride

KW - Hydrogen generation

KW - Molybdenum disulfide

KW - Photocatalysis

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