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Journal of Advanced Ceramics 2018, 7(1): 50-57 https://doi.org/10.1007/s40145-017-0255-z
Research Article | Open Access | Issue | Published: 28 December 2017

Novel ternary Ag/CeVO4/g-C3N4 nanocomposite as a highly efficient visible-light-driven photocatalyst

Show Author's Information J. RENa,†,  Y. Z. WUa,†,  J. M. PANa,  X. H. YANa,b,c( ),  M. CHENa,  J. J. WANGa,  D. F. WANGa,  C. ZHOUa,  Q. WANGa,  X. N. CHENGa,c
School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
Institute for Advanced Materials, Jiangsu University, Zhenjiang 212013, Jiangsu, China
Institute of Green Materials and Metallurgy, Jiangsu University, Zhenjiang 212013, Jiangsu, China

† J. Ren and Y. Z. Wu contributed equally to this work.

Keywords:
g-C3N4, nanocomposites, CeVO4, Ag, photocatalytic performance
Cite this article:
REN J, WU YZ, PAN JM, et al. Novel ternary Ag/CeVO4/g-C3N4 nanocomposite as a highly efficient visible-light-driven photocatalyst. Journal of Advanced Ceramics, 2018, 7(1): 50-57. https://doi.org/10.1007/s40145-017-0255-z
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Abstract Full text About this article

The CeVO4/graphitic C3N4 composites have exhibited much enhanced photocatalytic property for degrading methylene blue (MB) pollutant under visible light irradiation compared with single-phase g-C3N4 or CeVO4. The composite S5 obtained from an optimized mass ratio (5%) of CeVO4 to dicyanamide (DCDA) exhibits the highest photocatalytic activity. Here, ternary Ag/CeVO4/g-C3N4 composites denoted as X%Ag/S5 were prepared by an ultrasonic precipitation method to improve the photocatalytic property of S5. The TEM images show that CeVO4 and Ag nanoparticles are well distributed on the layered g-C3N4, which agree well with the XRD results. The UV spectra show that the 7%Ag/S5 sample has the widest absorption range and the enhanced absorption intensity under visible light irradiation. The corresponding band gap of 7%Ag/S5 (2.5 eV) is much lower than that of S5 (2.65 eV). The corresponding k value of 7%Ag/S5 is much higher than those of g-C3N4 and CeVO4. The degradation experiments for MB solution suggest that the 7%Ag/S5 sample has the optimal photocatalytic performance, which can degrade MB solution completely within 120 min. The enhanced photocatalytic property of the composites is ascribed to not only the effect of heterojunction structure, but also the surface plasma resonance effect of Ag nanoparticles.


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About this article

Novel ternary Ag/CeVO4/g-C3N4 nanocomposite as a highly efficient visible-light-driven photocatalyst

Show Author's information J. RENa,†, Y. Z. WUa,†, J. M. PANa, X. H. YANa,b,c( ), M. CHENa, J. J. WANGa, D. F. WANGa, C. ZHOUa, Q. WANGa, X. N. CHENGa,c
School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China
Institute for Advanced Materials, Jiangsu University, Zhenjiang 212013, Jiangsu, China
Institute of Green Materials and Metallurgy, Jiangsu University, Zhenjiang 212013, Jiangsu, China

† J. Ren and Y. Z. Wu contributed equally to this work.

Abstract

The CeVO4/graphitic C3N4 composites have exhibited much enhanced photocatalytic property for degrading methylene blue (MB) pollutant under visible light irradiation compared with single-phase g-C3N4 or CeVO4. The composite S5 obtained from an optimized mass ratio (5%) of CeVO4 to dicyanamide (DCDA) exhibits the highest photocatalytic activity. Here, ternary Ag/CeVO4/g-C3N4 composites denoted as X%Ag/S5 were prepared by an ultrasonic precipitation method to improve the photocatalytic property of S5. The TEM images show that CeVO4 and Ag nanoparticles are well distributed on the layered g-C3N4, which agree well with the XRD results. The UV spectra show that the 7%Ag/S5 sample has the widest absorption range and the enhanced absorption intensity under visible light irradiation. The corresponding band gap of 7%Ag/S5 (2.5 eV) is much lower than that of S5 (2.65 eV). The corresponding k value of 7%Ag/S5 is much higher than those of g-C3N4 and CeVO4. The degradation experiments for MB solution suggest that the 7%Ag/S5 sample has the optimal photocatalytic performance, which can degrade MB solution completely within 120 min. The enhanced photocatalytic property of the composites is ascribed to not only the effect of heterojunction structure, but also the surface plasma resonance effect of Ag nanoparticles.

Keywords: g-C3N4, nanocomposites, CeVO4, Ag, photocatalytic performance

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Publication history
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Publication history

Received: 15 August 2017
Revised: 20 November 2017
Accepted: 12 December 2017
Published: 28 December 2017
Issue date: March 2018

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© The author(s) 2017

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Open Access The articles published in this journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/ by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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