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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
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
Lin Zeng
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
Yijin Chen
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
Yueying Ma
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
Chunran Zhao
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
Risheng Jin
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
Yu Lu
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
Ying Wu
Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
Yiming He*
Department of Materials Science and Engineering, Zhejiang Normal University, Jinhua 321004, China
a)Address all correspondence to this author. e-mail:
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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.

Copyright © Materials Research Society 2017 

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Contributing Editor: Xiaobo Chen



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