Enhanced photocatalysis activity of ferroelectric KNbO3 nanofibers compared with antiferroelectric NaNbO3 nanofibers synthesized by electrospinning

Yu Huan; Xiaohui Wang; Weichang Hao; Longtu Li

doi:10.1039/C5RA13680F

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Enhanced photocatalysis activity of ferroelectric KNbO₃ nanofibers compared with antiferroelectric NaNbO₃ nanofibers synthesized by electrospinning†

Yu Huan,^a Xiaohui Wang,*^a Weichang Hao^b and Longtu Li^a

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* Corresponding authors

^a State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
E-mail: wxh@mail.tsinghua.edu.cn

^b Department of Physics, Key Laboratory of Micro-nano Measurement, Manipulation and Physics, Ministry of Education (MOE), Beihang University, Beijing 100191, China

Abstract

Perovskite-type alkaline niobate nanofibers were prepared by electrospinning. KNbO₃ nanofibers with lower BET exhibit higher photocatalytic efficiency than NaNbO₃ with similar phase structure and morphology. The internal electric field, which does not exist in antiferroelectric NaNbO₃, induced by spontaneous polarization in ferroelectric KNbO₃ can promote the separation and accelerate the movement of photogenerated charge carriers.

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Article information

DOI: https://doi.org/10.1039/C5RA13680F
Article type: Communication
Submitted: 13 Jul 2015
Accepted: 10 Aug 2015
First published: 10 Aug 2015

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RSC Adv., 2015,5, 72410-72415

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Enhanced photocatalysis activity of ferroelectric KNbO₃ nanofibers compared with antiferroelectric NaNbO₃ nanofibers synthesized by electrospinning

Y. Huan, X. Wang, W. Hao and L. Li, RSC Adv., 2015, 5, 72410 DOI: 10.1039/C5RA13680F

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