Photo-induced activity of BiFeO3/TiO2 nanotube arrays derived from ultrasound-assisted successive ionic layer adsorption and reaction
© 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 a...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Pergamon
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/41133 |
| Summary: | © 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. |
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