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In situ preparation of Z-scheme MoO3/g-C3N4 composite with high performance in photocatalytic CO2 reduction and RhB degradation

Published online by Cambridge University Press:  17 July 2017

Zhe Feng ,
Lin Zeng ,
Yijin Chen ,
Yueying Ma ,
Chunran Zhao ,
Risheng Jin ,
Yu Lu ,
Ying Wu  and
Yiming He Open the ORCID record for Yiming He [Opens in a new window]
Zhe Feng
Affiliation:
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
Lin Zeng
Affiliation:
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
Yijin Chen
Affiliation:
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
Yueying Ma
Affiliation:
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
Chunran Zhao
Affiliation:
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
Risheng Jin
Affiliation:
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
Yu Lu
Affiliation:
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
Ying Wu
Affiliation:
Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
Yiming He*
Affiliation:
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
*
a)Address all correspondence to this author. e-mail: [email protected]
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Abstract

This research was designed for the first time to investigate the photocatalytic activities of MoO3/g-C3N4 composite in converting CO2 to fuels under simulated sunlight irradiation. The composite was synthesized using a simple impregnation-heating method and MoO3 nanoparticles was in situ decorated on the g-C3N4 sheet. Characterization results indicated that the introduction of MoO3 nanoparticles into g-C3N4 fabricated a direct Z-scheme heterojunction structure. The effective interfacial charge-transfer across the heterojunction significantly promoted the separation efficiency of charge carriers. The optimal CO2 conversion rate of the composite reached 25.6 μmol/(h gcat), which was 2.7 times higher than that of g-C3N4. Additionally, the synthesized MoO3/g-C3N4 also presented excellent photoactivity in RhB degradation under visible-light irradiation.

Keywords

photocatalytic CO2 reductionMoO3g-C3N4Z-scheme
Type
Articles
Information
Journal of Materials Research , Volume 32 , Issue 19 , 16 October 2017 , pp. 3660 - 3668
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Copyright
Copyright © Materials Research Society 2017 

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Footnotes

Contributing Editor: Xiaobo Chen

References

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