In-situ growth of CdS quantum dots on g-C3N4 nanosheets for highly efficient photocatalytic hydrogen generation under visible light irradiation

Shao-Wen Cao; Yu-Peng Yuan; Jun Fang; Mohammad Mehdi Shahjamali; Freddy Y.C. Boey; James Barber; Say Chye Joachim Loo; Can Xue

doi:10.1016/j.ijhydene.2012.10.116

Author(s)

Shao-Wen Cao
Yu-Peng Yuan
Jun Fang
Mohammad Mehdi Shahjamali
James Barber
Say Chye Joachim Loo
Can Xue

Detail(s)

Original language	English
Pages (from-to)	1258-1266
Journal / Publication	International Journal of Hydrogen Energy
Volume	38
Issue number	3
Online published	2 Dec 2012
Publication status	Published - 6 Feb 2013
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/j.ijhydene.2012.10.116 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84872316741&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(95254595-1e2e-41f3-835e-5657db73079e).html

Abstract

Well dispersed CdS quantum dots were successfully grown in-situ on g-C ₃N₄ nanosheets through a solvothermal method involving dimethyl sulfoxide. The resultant CdS-C₃N₄ nanocomposites exhibit remarkably higher efficiency for photocatalytic hydrogen evolution under visible light irradiation as compared to pure g-C₃N₄. The optimal composite with 12 wt% CdS showed a hydrogen evolution rate of 4.494 mmol h^-1 g^-1, which is more than 115 times higher than that of pure g-C₃N₄. The enhanced photocatalytic activity induced by the in-situ grown CdS quantum dots is attributed to the interfacial transfer of photogenerated electrons and holes between g-C₃N ₄ and CdS, which leads to effective charge separation on both parts. Copyright © 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Research Area(s)

Carbon nitride, Charge transfer, Hydrogen production, Photocatalyst, Solar fuels, Water splitting

Citation Format(s)

[ RIS ] [ BibTeX ]

In-situ growth of CdS quantum dots on g-C₃N₄ nanosheets for highly efficient photocatalytic hydrogen generation under visible light irradiation. / Cao, Shao-Wen; Yuan, Yu-Peng; Fang, Jun et al.
In: International Journal of Hydrogen Energy, Vol. 38, No. 3, 06.02.2013, p. 1258-1266.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Cao, S-W, Yuan, Y-P, Fang, J, Shahjamali, MM, Boey, FYC, Barber, J, Joachim Loo, SC & Xue, C 2013, 'In-situ growth of CdS quantum dots on g-C₃N₄ nanosheets for highly efficient photocatalytic hydrogen generation under visible light irradiation', International Journal of Hydrogen Energy, vol. 38, no. 3, pp. 1258-1266. https://doi.org/10.1016/j.ijhydene.2012.10.116

Cao, S-W., Yuan, Y-P., Fang, J., Shahjamali, M. M., Boey, F. Y. C., Barber, J., Joachim Loo, S. C., & Xue, C. (2013). In-situ growth of CdS quantum dots on g-C₃N₄ nanosheets for highly efficient photocatalytic hydrogen generation under visible light irradiation. International Journal of Hydrogen Energy, 38(3), 1258-1266. https://doi.org/10.1016/j.ijhydene.2012.10.116

Cao S-W, Yuan Y-P, Fang J, Shahjamali MM, Boey FYC, Barber J et al. In-situ growth of CdS quantum dots on g-C₃N₄ nanosheets for highly efficient photocatalytic hydrogen generation under visible light irradiation. International Journal of Hydrogen Energy. 2013 Feb 6;38(3):1258-1266. Epub 2012 Dec 2. doi: 10.1016/j.ijhydene.2012.10.116

Cao, Shao-Wen ; Yuan, Yu-Peng ; Fang, Jun et al. / In-situ growth of CdS quantum dots on g-C₃N₄ nanosheets for highly efficient photocatalytic hydrogen generation under visible light irradiation. In: International Journal of Hydrogen Energy. 2013 ; Vol. 38, No. 3. pp. 1258-1266.