Solar-to-fuels conversion over In2O3/g-C3N4 hybrid photocatalysts

Shao Wen Cao; Xin Feng Liu; Yu Peng Yuan; Zhen Yi Zhang; Yu Sen Liao; Jun Fang; Say Chye Joachim Loo; Tze Chien Sum; Can Xue

doi:10.1016/j.apcatb.2013.10.029

Solar-to-fuels conversion over In₂O₃/g-C₃N₄ hybrid photocatalysts

Shao Wen Cao, Xin Feng Liu, Yu Peng Yuan, Zhen Yi Zhang, Yu Sen Liao, Jun Fang, Say Chye Joachim Loo^*, Tze Chien Sum, Can Xue

^*Corresponding author for this work

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

435 Citations (Scopus)

Abstract

We have achieved in-situ growth of In₂O₃ nanocrystals onto the sheet-like g-C₃N₄ surface. The resulting In₂O₃-g-C₃N₄ hybrid structures exhibit considerable improvement on the photocatalytic activities for H₂ generation and CO₂ reduction. The enhanced activities are attributed to the interfacial transfer of photogenerated electrons and holes between g-C₃N₄ and In₂O₃, leading to effective charge separation on both parts. Further studies by transient PL spectroscopy confirm that the In₂O₃-g-C₃N₄ heterojunctions remarkably promote the charge transfer efficiency, thereby increase the charge carrier lifetime for the photocatalytic reactions.

Original language	English
Pages (from-to)	940-946
Number of pages	7
Journal	Applied Catalysis B: Environmental
Volume	147
DOIs	https://doi.org/10.1016/j.apcatb.2013.10.029
Publication status	Published - Apr 5 2014
Externally published	Yes

ASJC Scopus Subject Areas

Catalysis
General Environmental Science
Process Chemistry and Technology

Keywords

Charge transfer
CO reduction
Graphitic carbon nitride
Hydrogen production
Photocatalysis

UN SDGs

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

Access to Document

10.1016/j.apcatb.2013.10.029

Cite this

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title = "Solar-to-fuels conversion over In2O3/g-C3N4 hybrid photocatalysts",

abstract = "We have achieved in-situ growth of In2O3 nanocrystals onto the sheet-like g-C3N4 surface. The resulting In2O3-g-C3N4 hybrid structures exhibit considerable improvement on the photocatalytic activities for H2 generation and CO2 reduction. The enhanced activities are attributed to the interfacial transfer of photogenerated electrons and holes between g-C3N4 and In2O3, leading to effective charge separation on both parts. Further studies by transient PL spectroscopy confirm that the In2O3-g-C3N4 heterojunctions remarkably promote the charge transfer efficiency, thereby increase the charge carrier lifetime for the photocatalytic reactions.",

keywords = "Charge transfer, CO reduction, Graphitic carbon nitride, Hydrogen production, Photocatalysis",

author = "Cao, {Shao Wen} and Liu, {Xin Feng} and Yuan, {Yu Peng} and Zhang, {Zhen Yi} and Liao, {Yu Sen} and Jun Fang and Loo, {Say Chye Joachim} and Sum, {Tze Chien} and Can Xue",

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doi = "10.1016/j.apcatb.2013.10.029",

language = "English",

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journal = "Applied Catalysis B: Environmental",

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T1 - Solar-to-fuels conversion over In2O3/g-C3N4 hybrid photocatalysts

AU - Cao, Shao Wen

AU - Liu, Xin Feng

AU - Yuan, Yu Peng

AU - Zhang, Zhen Yi

AU - Liao, Yu Sen

AU - Fang, Jun

AU - Loo, Say Chye Joachim

AU - Sum, Tze Chien

AU - Xue, Can

PY - 2014/4/5

Y1 - 2014/4/5

N2 - We have achieved in-situ growth of In2O3 nanocrystals onto the sheet-like g-C3N4 surface. The resulting In2O3-g-C3N4 hybrid structures exhibit considerable improvement on the photocatalytic activities for H2 generation and CO2 reduction. The enhanced activities are attributed to the interfacial transfer of photogenerated electrons and holes between g-C3N4 and In2O3, leading to effective charge separation on both parts. Further studies by transient PL spectroscopy confirm that the In2O3-g-C3N4 heterojunctions remarkably promote the charge transfer efficiency, thereby increase the charge carrier lifetime for the photocatalytic reactions.

AB - We have achieved in-situ growth of In2O3 nanocrystals onto the sheet-like g-C3N4 surface. The resulting In2O3-g-C3N4 hybrid structures exhibit considerable improvement on the photocatalytic activities for H2 generation and CO2 reduction. The enhanced activities are attributed to the interfacial transfer of photogenerated electrons and holes between g-C3N4 and In2O3, leading to effective charge separation on both parts. Further studies by transient PL spectroscopy confirm that the In2O3-g-C3N4 heterojunctions remarkably promote the charge transfer efficiency, thereby increase the charge carrier lifetime for the photocatalytic reactions.

KW - Charge transfer

KW - CO reduction

KW - Graphitic carbon nitride

KW - Hydrogen production

KW - Photocatalysis

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