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Journal of Advanced Ceramics 2012, 1(1): 72-78 https://doi.org/10.1007/s40145-012-0008-y
Research Article | Open Access | Issue | Published: 29 June 2012

Significant photocatalytic enhancement in methylene blue degradation of Bi2WO6 photocatalysts via graphene hybridization

Show Author's Information Feng ZHOUa,b,*( ),  Yongfa ZHUb
Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China
Department of Chemistry, Tsinghua University, Beijing 100084, China
Keywords:
carbon, nanocomposites, powders-chemical preparation, photocatalyst
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ZHOU F, ZHU Y. Significant photocatalytic enhancement in methylene blue degradation of Bi2WO6 photocatalysts via graphene hybridization. Journal of Advanced Ceramics, 2012, 1(1): 72-78. https://doi.org/10.1007/s40145-012-0008-y
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Abstract Full text About this article

The hybridization of graphene with Bi2WO6 photocatalysts was employed to enhance the photocatalytic activity. The photocatalytic activity enhancements were dependent on the amount of graphene and it was found that the optimal hybridized amount of graphene was about 1.5 wt%, which was close to the monolayer dispersing of graphene on Bi2WO6 surface. Up to four times of the photocatalytic activity was enhanced by the hybridization of graphene, compared with that of pristine Bi2WO6. The enhancement mechanism of the photocatalytic activity was attributed to the higher separation efficiency and the inhibition of recombination of photoinduced electron-hole pairs. The electronic interaction was verified by the photoelectrochemical measurements.


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Significant photocatalytic enhancement in methylene blue degradation of Bi2WO6 photocatalysts via graphene hybridization

Show Author's information Feng ZHOUa,b,*( ), Yongfa ZHUb
Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, China
Department of Chemistry, Tsinghua University, Beijing 100084, China

Abstract

The hybridization of graphene with Bi2WO6 photocatalysts was employed to enhance the photocatalytic activity. The photocatalytic activity enhancements were dependent on the amount of graphene and it was found that the optimal hybridized amount of graphene was about 1.5 wt%, which was close to the monolayer dispersing of graphene on Bi2WO6 surface. Up to four times of the photocatalytic activity was enhanced by the hybridization of graphene, compared with that of pristine Bi2WO6. The enhancement mechanism of the photocatalytic activity was attributed to the higher separation efficiency and the inhibition of recombination of photoinduced electron-hole pairs. The electronic interaction was verified by the photoelectrochemical measurements.

Keywords: carbon, nanocomposites, powders-chemical preparation, photocatalyst

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Publication history
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Publication history

Received: 01 September 2011
Accepted: 22 November 2011
Published: 29 June 2012
Issue date: March 2012

Copyright

© The author(s) 2012

Acknowledgements

This work was supported by the National Natural Science Foundation of China (20925725), the Fundamental Research Funds for the Central Universities (2011QN138) and State Key Laboratory of New Ceramic and Fine Processing Tsinghua University.

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Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and source are credited.

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