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

J. REN; Y. Z. WU; J. M. PAN; X. H. YAN; M. CHEN; J. J. WANG; D. F. WANG; C. ZHOU; Q. WANG; X. N. CHENG

doi:10.1007/s40145-017-0255-z

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 Hide Author's Information J. REN^{^a^,^†}, Y. Z. WU^{^a^,^†}, J. M. PAN^{^a}, X. H. YAN^{^a^,^b^,^c}(

), M. CHEN^{^a}, J. J. WANG^{^a}, D. F. WANG^{^a}, C. ZHOU^{^a}, Q. WANG^{^a}, X. N. CHENG^{^a^,^c}

^a School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China

^b Institute for Advanced Materials, Jiangsu University, Zhenjiang 212013, Jiangsu, China

^c 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, CeVO₄, Ag, nanocomposites, 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

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

Show Author's information Hide Author's Information J. REN^{^a^,^†}, Y. Z. WU^{^a^,^†}, J. M. PAN^{^a}, X. H. YAN^{^a^,^b^,^c}(

), M. CHEN^{^a}, J. J. WANG^{^a}, D. F. WANG^{^a}, C. ZHOU^{^a}, Q. WANG^{^a}, X. N. CHENG^{^a^,^c}

^a School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, Jiangsu, China

^b Institute for Advanced Materials, Jiangsu University, Zhenjiang 212013, Jiangsu, China

^c Institute of Green Materials and Metallurgy, Jiangsu University, Zhenjiang 212013, Jiangsu, China

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

Abstract

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

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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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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.