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In-situ Reduction Synthesis of Cu2O Quantum Dots Modifying g-C3N4 for Enhanced Photocatalytic Hydrogen Production
CHEN Jie,SEHN Shaohua * #
International Research Center for Renewable Energy, State Key Laboratory of Multiphase Flow in Power Engineering, Xi'an Jiaotong University
*Correspondence author
#Submitted by
Subject:
Funding: Doctoral Program of the Ministry of Education （No.No. 20110201120040）, National Natural Science Foundation of China （No.No. 51102194）
Opened online:31 October 2013
Accepted by: none
Citation: CHEN Jie,SEHN Shaohua.In-situ Reduction Synthesis of Cu2O Quantum Dots Modifying g-C3N4 for Enhanced Photocatalytic Hydrogen Production[OL]. [31 October 2013] http://en.paper.edu.cn/en_releasepaper/content/4565713
 
 
In this paper, Cu2O quantum dots (QDs) were directly formed on g-C3N4 via a one-pot in-situ reduction method. The physical and photophysical properties of these Cu2O QDs modified g-C3N4 photocatalysts were characterized to investigate the effects of Cu2O QDs on the photocatalytic activities of g-C3N4. Close contact was formed between Cu2O and g-C3N4 and the Cu2O QDs were well dispersed on g-C3N4. The visible light photocatalytic hydrogen production activity over g-C3N4 was enhanced by more than 70% with the Cu2O QDs modification. The photocatalytic mechanism analysis revealed that the close contact, efficient visible light absorption and Type II band alignment induced charge separation by Cu2O QDs modification should be the key factors for the improved photocatalytic performance.
Keywords:physical chemistry; Cu2O/g-C3N4; quantum dots; Type II band alignment; hydrogen production
 
 
 

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