TiO2        nanotube arrays grown in ionic liquids: high-efficiency in photocatalysis and pore-widening

Huaqing Li; Jun Qu; Qingzhou Cui; Hanbing Xu; Huimin Luo; Miaofang Chi; Roberta A. Meisner; Wei Wang; Sheng Dai

doi:10.1039/C1JM11540E

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TiO₂nanotube arrays grown in ionic liquids: high-efficiency in photocatalysis and pore-widening†

Huaqing Li,^ab Jun Qu,*^a Qingzhou Cui,^c Hanbing Xu,^a Huimin Luo,^d Miaofang Chi,^a Roberta A. Meisner,^ab Wei Wang^c and Sheng Dai^e

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* Corresponding authors

^a Materials Science and Technology Division, Oak Ridge National Laboratory (ORNL), Oak Ridge, TN, USA
E-mail: qujn@ornl.gov
Fax: +1 (865)574-4913
Tel: +1 (865)576-9304

^b Department of Physics, University of Tennessee, Knoxville, TN, USA

^c Biological and Environmental Sciences Division, ORNL, USA

^d Energy and Transportation Science Division, ORNL, USA

^e Chemical Sciences Division, ORNL, USA

Abstract

Debris-free, long, well-separated TiO₂ nanotube arrays were obtained using an ionic liquid (IL) as electrolyte. The high conductivity of IL resulted in fast pore widening and few contaminants from electrolyte decomposition leading to high photocatalytic efficiency in water splitting.

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Article information

DOI: https://doi.org/10.1039/C1JM11540E
Article type: Communication
Submitted: 11 Apr 2011
Accepted: 10 May 2011
First published: 03 Jun 2011

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J. Mater. Chem., 2011,21, 9487-9490

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TiO₂ nanotube arrays grown in ionic liquids: high-efficiency in photocatalysis and pore-widening

H. Li, J. Qu, Q. Cui, H. Xu, H. Luo, M. Chi, R. A. Meisner, W. Wang and S. Dai, J. Mater. Chem., 2011, 21, 9487 DOI: 10.1039/C1JM11540E

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Journal of Materials Chemistry