Issue 71, 2018
From the journal:

RSC Advances

The solvent-driven formation of multi-morphological Ag–CeO2 plasmonic photocatalysts with enhanced visible-light photocatalytic reduction of CO2

Wei Cai, ORCID logo *a   Yunpeng Shi,a   Yunxia Zhao,a   Mindong Chen,a   Qin Zhongb  and  Yunfei Bu ORCID logo a  

* Corresponding authors

a Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology (CICAEET), Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, P. R. China
E-mail: caiwei_19880105@163.com

b School of Chemical and Engineering, Nanjing University of Science and Technology, Nanjing, P. R. China

Abstract

Ag–CeO2 plasmonic photocatalysts with multiple morphologies were synthesized via a simple solvent-driven method. The phase compositions, morphologies and optical properties of the samples were systematically investigated. A combination of noble metal Ag and semiconductor CeO2 in certain solvents (such as methanol and ethylene glycol) enhanced surface plasmon resonance (SPR), which was attributed to the good dispersion of Ag particles on CeO2 and high Ag0 ratios on the surface. The enhanced SPR effect boosted absorption of incident light and facilitated charge carrier separation and transport efficiency caused by the formation of Schottky barriers, thus promoting VLPCR performance. The optimum ACG sample (ethylene glycol was adopted as the solvent) exhibited the maximum VLPCR activity, achieving a CH4 yield of 100 μmol and a CH3OH yield of 35 μmol per gram of catalyst per hour during 6 h visible-light irradiation.

Graphical abstract: The solvent-driven formation of multi-morphological Ag–CeO2 plasmonic photocatalysts with enhanced visible-light photocatalytic reduction of CO2

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Article information

DOI
https://doi.org/10.1039/C8RA08938H
Article type
Paper
Submitted
29 Oct 2018
Accepted
27 Nov 2018
First published
11 Dec 2018
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2018,8, 40731-40739

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The solvent-driven formation of multi-morphological Ag–CeO2 plasmonic photocatalysts with enhanced visible-light photocatalytic reduction of CO2

W. Cai, Y. Shi, Y. Zhao, M. Chen, Q. Zhong and Y. Bu, RSC Adv., 2018, 8, 40731 DOI: 10.1039/C8RA08938H

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