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Photo-induced activity of BiFeO3/TiO2 nanotube arrays derived from ultrasound-assisted successive ionic layer adsorption and reaction

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Authors
Zhao, Q.
Ren, Y.
Li, Xin Yong
Shi, Y.
Date
2016
Type
Journal Article

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Zhao, Q. and Ren, Y. and Li, X.Y. and Shi, Y. 2016. Photo-induced activity of BiFeO3/TiO2 nanotube arrays derived from ultrasound-assisted successive ionic layer adsorption and reaction. Materials Research Bulletin. 83: pp. 396-399.
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Materials Research Bulletin
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Faculty
Faculty of Science and Engineering
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Department of Chemical Engineering
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Abstract

© 2016 Elsevier LtdIn this work, a facile strategy of ultrasound-assisted successive ionic layer adsorption and reaction was successfully employed to modify TiO2 nanotube arrays with BiFeO3 nanoparticles. An enhanced positive surface photovoltage was observed with the obtained BiFeO3/TiO2 nanotube arrays as well as a longer lifetime of charges separation state, as probed by transient photovoltage technique. The higher photocurrent density produced by BiFeO3/TiO2 nanotube arrays further indicated that BiFeO3 nanoparticles contributed to photo conversion and promoted the generation of photo-induced charge carriers over TiO2 nanotube arrays. Besides, the prepared BiFeO3/TiO2 electrode exhibited a much enhanced photoelectrocatalytic performance in removing methyl blue compared with bare TiO2 nanotube arrays.