Rational construction of a CdS/reduced graphene oxide/TiO2 core-shell nanostructure as an all-solid-state Z-scheme system for CO2 photoreduction into solar fuels

Libang Kuai; Yong Zhou; Wengguang Tu; Ping Li; Haijin Li; Qinfeng Xu; Lanqin Tang; Xiaoyong Wang; Min Xiao; Zhigang Zou

doi:10.1039/c5ra14374h

Rational construction of a CdS/reduced graphene oxide/TiO₂ core-shell nanostructure as an all-solid-state Z-scheme system for CO₂ photoreduction into solar fuels

Libang Kuai, Yong Zhou, Wengguang Tu, Ping Li, Haijin Li, Qinfeng Xu, Lanqin Tang, Xiaoyong Wang, Min Xiao, Zhigang Zou

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

71 Scopus citations

Abstract

Mimicking natural photosynthesis in green plants, an all-solid-state Z-scheme was constructed for photocatalytic reduction of CO₂ in the presence of water vapor, consisting of CdS nanospheres (CdS NSs) and TiO₂ nanoparticles as photocatalysts, and reduced graphene oxide (rGO) as a solid electron mediator. In this Z-scheme system, the photogenerated electrons from the conduction band of TiO₂ transfer to rGO, and then recombine with the existing holes of CdS NSs, allowing the photo-generated electrons to enrich on the CdS semiconductor and holes on the TiO₂. The photocatalytic efficiency of the Z-scheme system exhibits remarkable enhancement relative to pure CdS, CdS/TiO₂, and CdS/rGO.

Original language	English
Pages (from-to)	88409-88413
Number of pages	5
Journal	RSC Advances
Volume	5
Issue number	107
DOIs	https://doi.org/10.1039/c5ra14374h
State	Published - 2015
Externally published	Yes

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title = "Rational construction of a CdS/reduced graphene oxide/TiO2 core-shell nanostructure as an all-solid-state Z-scheme system for CO2 photoreduction into solar fuels",

abstract = "Mimicking natural photosynthesis in green plants, an all-solid-state Z-scheme was constructed for photocatalytic reduction of CO2 in the presence of water vapor, consisting of CdS nanospheres (CdS NSs) and TiO2 nanoparticles as photocatalysts, and reduced graphene oxide (rGO) as a solid electron mediator. In this Z-scheme system, the photogenerated electrons from the conduction band of TiO2 transfer to rGO, and then recombine with the existing holes of CdS NSs, allowing the photo-generated electrons to enrich on the CdS semiconductor and holes on the TiO2. The photocatalytic efficiency of the Z-scheme system exhibits remarkable enhancement relative to pure CdS, CdS/TiO2, and CdS/rGO.",

author = "Libang Kuai and Yong Zhou and Wengguang Tu and Ping Li and Haijin Li and Qinfeng Xu and Lanqin Tang and Xiaoyong Wang and Min Xiao and Zhigang Zou",

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year = "2015",

doi = "10.1039/c5ra14374h",

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T1 - Rational construction of a CdS/reduced graphene oxide/TiO2 core-shell nanostructure as an all-solid-state Z-scheme system for CO2 photoreduction into solar fuels

AU - Kuai, Libang

AU - Zhou, Yong

AU - Tu, Wengguang

AU - Li, Ping

AU - Li, Haijin

AU - Xu, Qinfeng

AU - Tang, Lanqin

AU - Wang, Xiaoyong

AU - Xiao, Min

AU - Zou, Zhigang

PY - 2015

Y1 - 2015

N2 - Mimicking natural photosynthesis in green plants, an all-solid-state Z-scheme was constructed for photocatalytic reduction of CO2 in the presence of water vapor, consisting of CdS nanospheres (CdS NSs) and TiO2 nanoparticles as photocatalysts, and reduced graphene oxide (rGO) as a solid electron mediator. In this Z-scheme system, the photogenerated electrons from the conduction band of TiO2 transfer to rGO, and then recombine with the existing holes of CdS NSs, allowing the photo-generated electrons to enrich on the CdS semiconductor and holes on the TiO2. The photocatalytic efficiency of the Z-scheme system exhibits remarkable enhancement relative to pure CdS, CdS/TiO2, and CdS/rGO.

AB - Mimicking natural photosynthesis in green plants, an all-solid-state Z-scheme was constructed for photocatalytic reduction of CO2 in the presence of water vapor, consisting of CdS nanospheres (CdS NSs) and TiO2 nanoparticles as photocatalysts, and reduced graphene oxide (rGO) as a solid electron mediator. In this Z-scheme system, the photogenerated electrons from the conduction band of TiO2 transfer to rGO, and then recombine with the existing holes of CdS NSs, allowing the photo-generated electrons to enrich on the CdS semiconductor and holes on the TiO2. The photocatalytic efficiency of the Z-scheme system exhibits remarkable enhancement relative to pure CdS, CdS/TiO2, and CdS/rGO.

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Rational construction of a CdS/reduced graphene oxide/TiO₂ core-shell nanostructure as an all-solid-state Z-scheme system for CO₂ photoreduction into solar fuels

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