Enhanced selective photocatalytic CO                         2                          reduction into CO over Ag/CdS nanocomposites under visible light

Zezhou Zhu; Jiani Qin; Min Jiang; Zhengxin Ding; Yidong Hou

doi:10.1016/j.apsusc.2016.06.148

Enhanced selective photocatalytic CO ₂ reduction into CO over Ag/CdS nanocomposites under visible light

Zezhou Zhu, Jiani Qin, Min Jiang, Zhengxin Ding, Yidong Hou

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

107 Scopus citations

Abstract

Photocatalytic reduction of carbon dioxide can convert chemically inert carbon dioxide into useful chemical fuel in a mild manner. Herein, Ag-CdS nanocomposites were prepared by photodeposition method and examined for photocatalytic CO ₂ reduction under visible light. Meanwhile, the nanocomposites were characterized by XRD, SEM, TEM, XPS, DRS and PL in detail. The results show that, the deposition of Ag improves the photocatalytic performance of CdS, especially in the selectivity of CO ₂ -to-CO. The highest photocatalytic activity is achieved over 1.0 wt.% Ag/CdS, with an increase by 3 times in comparison to CdS. In this reaction system, Ag can serve as electron trap as well as active site for CO ₂ reduction, which is probably responsible for the enhanced activity and selectivity of CO ₂ to CO over Ag/CdS. The possible mechanism of CO ₂ photoreduction over Ag/CdS was proposed in view of the abovementioned analysis.

Original language	English
Pages (from-to)	572-579
Number of pages	8
Journal	Applied Surface Science
Volume	391
DOIs	https://doi.org/10.1016/j.apsusc.2016.06.148
State	Published - 1 Jan 2017
Externally published	Yes

Keywords

Ag
Artificial photosynthesis
CO reduction
CdS
Cocatalyst

ASJC Scopus subject areas

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

UN SDGs

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

Access to Document

10.1016/j.apsusc.2016.06.148

Cite this

@article{ed4eacc05f2f48a08a35db2cf0d75048,

title = " Enhanced selective photocatalytic CO 2 reduction into CO over Ag/CdS nanocomposites under visible light ",

abstract = " Photocatalytic reduction of carbon dioxide can convert chemically inert carbon dioxide into useful chemical fuel in a mild manner. Herein, Ag-CdS nanocomposites were prepared by photodeposition method and examined for photocatalytic CO 2 reduction under visible light. Meanwhile, the nanocomposites were characterized by XRD, SEM, TEM, XPS, DRS and PL in detail. The results show that, the deposition of Ag improves the photocatalytic performance of CdS, especially in the selectivity of CO 2 -to-CO. The highest photocatalytic activity is achieved over 1.0 wt.% Ag/CdS, with an increase by 3 times in comparison to CdS. In this reaction system, Ag can serve as electron trap as well as active site for CO 2 reduction, which is probably responsible for the enhanced activity and selectivity of CO 2 to CO over Ag/CdS. The possible mechanism of CO 2 photoreduction over Ag/CdS was proposed in view of the abovementioned analysis.",

keywords = "Ag, Artificial photosynthesis, CO reduction, CdS, Cocatalyst",

author = "Zezhou Zhu and Jiani Qin and Min Jiang and Zhengxin Ding and Yidong Hou",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2017",

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doi = "10.1016/j.apsusc.2016.06.148",

language = "English",

volume = "391",

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Enhanced selective photocatalytic CO ₂ reduction into CO over Ag/CdS nanocomposites under visible light . / Zhu, Zezhou; Qin, Jiani; Jiang, Min et al.
In: Applied Surface Science, Vol. 391, 01.01.2017, p. 572-579.

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

TY - JOUR

T1 - Enhanced selective photocatalytic CO 2 reduction into CO over Ag/CdS nanocomposites under visible light

AU - Zhu, Zezhou

AU - Qin, Jiani

AU - Jiang, Min

AU - Ding, Zhengxin

AU - Hou, Yidong

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Photocatalytic reduction of carbon dioxide can convert chemically inert carbon dioxide into useful chemical fuel in a mild manner. Herein, Ag-CdS nanocomposites were prepared by photodeposition method and examined for photocatalytic CO 2 reduction under visible light. Meanwhile, the nanocomposites were characterized by XRD, SEM, TEM, XPS, DRS and PL in detail. The results show that, the deposition of Ag improves the photocatalytic performance of CdS, especially in the selectivity of CO 2 -to-CO. The highest photocatalytic activity is achieved over 1.0 wt.% Ag/CdS, with an increase by 3 times in comparison to CdS. In this reaction system, Ag can serve as electron trap as well as active site for CO 2 reduction, which is probably responsible for the enhanced activity and selectivity of CO 2 to CO over Ag/CdS. The possible mechanism of CO 2 photoreduction over Ag/CdS was proposed in view of the abovementioned analysis.

AB - Photocatalytic reduction of carbon dioxide can convert chemically inert carbon dioxide into useful chemical fuel in a mild manner. Herein, Ag-CdS nanocomposites were prepared by photodeposition method and examined for photocatalytic CO 2 reduction under visible light. Meanwhile, the nanocomposites were characterized by XRD, SEM, TEM, XPS, DRS and PL in detail. The results show that, the deposition of Ag improves the photocatalytic performance of CdS, especially in the selectivity of CO 2 -to-CO. The highest photocatalytic activity is achieved over 1.0 wt.% Ag/CdS, with an increase by 3 times in comparison to CdS. In this reaction system, Ag can serve as electron trap as well as active site for CO 2 reduction, which is probably responsible for the enhanced activity and selectivity of CO 2 to CO over Ag/CdS. The possible mechanism of CO 2 photoreduction over Ag/CdS was proposed in view of the abovementioned analysis.

KW - Ag

KW - Artificial photosynthesis

KW - CO reduction

KW - CdS

KW - Cocatalyst

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