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

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^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

363 Citations (Scopus)

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.

Original language	English
Pages (from-to)	1258-1266
Journal	International Journal of Hydrogen Energy
Volume	38
Issue number	3
Online published	2 Dec 2012
DOIs	https://doi.org/10.1016/j.ijhydene.2012.10.116
Publication status	Published - 6 Feb 2013
Externally published	Yes

UN SDGs

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

SDG 7 Affordable and Clean Energy

Research Keywords

Carbon nitride
Charge transfer
Hydrogen production
Photocatalyst
Solar fuels
Water splitting

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10.1016/j.ijhydene.2012.10.116

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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

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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 {\textcopyright} 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.",

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

author = "Shao-Wen Cao and Yu-Peng Yuan and Jun Fang and Shahjamali, {Mohammad Mehdi} and Boey, {Freddy Y.C.} and James Barber and {Joachim Loo}, {Say Chye} and Can Xue",

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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 - Publication in refereed journal › peer-review

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T1 - In-situ growth of CdS quantum dots on g-C3N4 nanosheets for highly efficient photocatalytic hydrogen generation under visible light irradiation

AU - Cao, Shao-Wen

AU - Yuan, Yu-Peng

AU - Fang, Jun

AU - Shahjamali, Mohammad Mehdi

AU - Boey, Freddy Y.C.

AU - Barber, James

AU - Joachim Loo, Say Chye

AU - Xue, Can

PY - 2013/2/6

Y1 - 2013/2/6

N2 - 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.

AB - 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.

KW - Carbon nitride

KW - Charge transfer

KW - Hydrogen production

KW - Photocatalyst

KW - Solar fuels

KW - Water splitting

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DO - 10.1016/j.ijhydene.2012.10.116

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JF - International Journal of Hydrogen Energy

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