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Nano Research 2017, 10(11): 3817-3825 https://doi.org/10.1007/s12274-017-1594-3
Research Article | Issue | Published: 01 July 2017

Active {010} facet-exposed Cu2MoS4 nanotube as high-efficiency photocatalyst

Show Author's Information Ke Zhang1,  Yunxiang Lin1,  Zahir Muhammad1,  Chuanqiang Wu1,  Shuang Yang1,  Qun He1,  Xusheng Zheng1,  Shuangming Chen1( ),  Binghui Ge2( ),  Li Song1( )
National Synchrotron Radiation Laboratory, CAS Center for Excellence in NanoscienceUniversity of Science and Technology of ChinaHefei230029China
Beijing National Laboratory for Condensed Mater PhysicsInstitute of Physics, Chinese Academy of SciencesBeijing100190China
Keywords:
nanotube, facet control, photodegradation, theoretical calculations, watersplitting
Cite this article:
Zhang K, Lin Y, Muhammad Z, et al. Active {010} facet-exposed Cu2MoS4 nanotube as high-efficiency photocatalyst. Nano Research, 2017, 10(11): 3817-3825. https://doi.org/10.1007/s12274-017-1594-3
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Abstract Full text Electronic supplementary material About this article

Rational design and facet-engineering of nanocrystal is an effective strategy to optimize the catalytic performance of abundant and economic semiconductor-based photocatalysts. In this study, we demonstrate a novel ternary Cu2MoS4 nanotube with the {010} facet exposed, synthesized via a hydrothermal method. Compared with two-dimensional Cu2MoS4 nanosheet with the {001} facet exposed, this one-dimensional nanotube exhibits highly enhanced performance of photodegradation and water splitting. Both theoretical calculations and experimental results suggest that the conduction band minimum (CBM) of the {010} facet crystal shows lower potential than that of the {001} facet. In particular, the up-shifted CBM in Cu2MoS4 nanotube is significantly beneficial for the absorption of dye molecules and reduction of H+ to H2. These results may open a new route for realizing high-efficiency photocatalysts based on Cu2MX4 by facet engineering.


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Electronic supplementary material
About this article

Active {010} facet-exposed Cu2MoS4 nanotube as high-efficiency photocatalyst

Show Author's information Ke Zhang1, Yunxiang Lin1, Zahir Muhammad1, Chuanqiang Wu1, Shuang Yang1, Qun He1, Xusheng Zheng1, Shuangming Chen1( ), Binghui Ge2( ), Li Song1( )
National Synchrotron Radiation Laboratory, CAS Center for Excellence in NanoscienceUniversity of Science and Technology of ChinaHefei230029China
Beijing National Laboratory for Condensed Mater PhysicsInstitute of Physics, Chinese Academy of SciencesBeijing100190China

Abstract

Rational design and facet-engineering of nanocrystal is an effective strategy to optimize the catalytic performance of abundant and economic semiconductor-based photocatalysts. In this study, we demonstrate a novel ternary Cu2MoS4 nanotube with the {010} facet exposed, synthesized via a hydrothermal method. Compared with two-dimensional Cu2MoS4 nanosheet with the {001} facet exposed, this one-dimensional nanotube exhibits highly enhanced performance of photodegradation and water splitting. Both theoretical calculations and experimental results suggest that the conduction band minimum (CBM) of the {010} facet crystal shows lower potential than that of the {001} facet. In particular, the up-shifted CBM in Cu2MoS4 nanotube is significantly beneficial for the absorption of dye molecules and reduction of H+ to H2. These results may open a new route for realizing high-efficiency photocatalysts based on Cu2MX4 by facet engineering.

Keywords: nanotube, facet control, photodegradation, theoretical calculations, watersplitting

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Publication history
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Acknowledgements

Publication history

Received: 03 February 2017
Revised: 12 March 2017
Accepted: 14 March 2017
Published: 01 July 2017
Issue date: November 2017

Copyright

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2017

Acknowledgements

Acknowledgements

This work is financially supported by the National Basic Research Program of China (No. 2014CB848900), National Natural Science Foundation of China (Nos. U1532112, 11375198, 11574280, and 11605201), CUSF (Nos. WK2310000053, 6030000031), China Scholarship Council and Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University. L. S. acknowledges the recruitment program of global experts, the CAS Hundred Talent Program. We thank the Shanghai Synchrotron Radiation Facility (14W1, SSRF), the Beijing Synchrotron Radiation Facility (1W1B and soft-X-ray endstation, BSRF), the Hefei Synchrotron Radiation Facility (Photoemission, MCD and Catalysis/Surface Science Endstations, NSRL), and the USTC Center for Micro and Nanoscale Research and Fabrication for help in characterizations. The authors also thank Ms. Ying Luo, Dr. Jun Bao, and Dr. Yu Li for useful discussions.

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