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Nano Research 2012, 5(8): 576-583 https://doi.org/10.1007/s12274-012-0243-0
Research Article | Issue | Published: 22 July 2012

A Novel Sn2Sb2O7 Nanophotocatalyst for Visible-Light-Driven H2 Evolution

Show Author's Information Jinwen Shi,  Lijing Ma,  Po Wu,  Zhaohui Zhou,  Penghui Guo,  Shaohua Shen,  Dengwei Jing,  Liejin Guo( )
28 West Xianning Road International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University (XJTU)Xi'an 710049 China
Keywords:
nanostructures, photochemistry, energy conversion, ion exchange, Bandgap engineering, tin(Ⅱ)
Cite this article:
Shi J, Ma L, Wu P, et al. A Novel Sn2Sb2O7 Nanophotocatalyst for Visible-Light-Driven H2 Evolution. Nano Research, 2012, 5(8): 576-583. https://doi.org/10.1007/s12274-012-0243-0
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Abstract Full text Electronic supplementary material About this article

A novel pure cubic-phase pyrochlore structure tin(Ⅱ) antimonate nanophotocatalyst, stoichiometric Sn2Sb2O7, has been prepared by a modified ion-exchange process using an antimonic acid precursor, and employed in visible-light-driven photocatalytic H2 evolution for the first time. The physicochemical properties (crystal phase, chemical composition and state, textural properties, and optical properties) of the material were investigated by different instrumental techniques. Compared with the antimonic acid precursor, the as-prepared Sn2Sb2O7 had a narrower bandgap, smaller crystal size, and larger BET surface area. The as-prepared Sn2Sb2O7 was validated as a promising candidate for visible-light-driven photocatalytic H2 evolution with a constant rate of 40.10 μmol·h−1·gcat−1.


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About this article

A Novel Sn2Sb2O7 Nanophotocatalyst for Visible-Light-Driven H2 Evolution

Show Author's information Jinwen Shi, Lijing Ma, Po Wu, Zhaohui Zhou, Penghui Guo, Shaohua Shen, Dengwei Jing, Liejin Guo( )
28 West Xianning Road International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power Engineering (MFPE), Xi'an Jiaotong University (XJTU)Xi'an 710049 China

Abstract

A novel pure cubic-phase pyrochlore structure tin(Ⅱ) antimonate nanophotocatalyst, stoichiometric Sn2Sb2O7, has been prepared by a modified ion-exchange process using an antimonic acid precursor, and employed in visible-light-driven photocatalytic H2 evolution for the first time. The physicochemical properties (crystal phase, chemical composition and state, textural properties, and optical properties) of the material were investigated by different instrumental techniques. Compared with the antimonic acid precursor, the as-prepared Sn2Sb2O7 had a narrower bandgap, smaller crystal size, and larger BET surface area. The as-prepared Sn2Sb2O7 was validated as a promising candidate for visible-light-driven photocatalytic H2 evolution with a constant rate of 40.10 μmol·h−1·gcat−1.

Keywords: nanostructures, photochemistry, energy conversion, ion exchange, Bandgap engineering, tin(Ⅱ)

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Publication history
Copyright
Acknowledgements

Publication history

Received: 29 March 2012
Revised: 22 June 2012
Accepted: 24 June 2012
Published: 22 July 2012
Issue date: August 2012

Copyright

© Tsinghua University Press and Springer‐Verlag Berlin Heidelberg 2012

Acknowledgements

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Nos. 50821064, 51121092, 20906074, and 51102194) and the National Basic Research Program of China (No. 2009CB220000). The authors acknowledge the "3rd Australia-China Symposium for Materials Science", and J. W. Shi thanks W. D. Tang for taking photographs.

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