Synthesis of novel Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays with enhanced photoelectrocatalytic properties
A novel nanocomposite electrode with tight and vertically aligned Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays (NTs) has been successfully synthesized via an ultrasonically assisted electrodeposition strategy. The scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffracti...
| Main Authors: | , , , |
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| Format: | Journal Article |
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Royal Society of Chemistry
2015
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| Online Access: | http://hdl.handle.net/20.500.11937/44500 |
| _version_ | 1848757019205435392 |
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| author | Pan, J. Li, Xin Yong Zhao, Q. Zhang, D. |
| author_facet | Pan, J. Li, Xin Yong Zhao, Q. Zhang, D. |
| author_sort | Pan, J. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A novel nanocomposite electrode with tight and vertically aligned Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays (NTs) has been successfully synthesized via an ultrasonically assisted electrodeposition strategy. The scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) of the composite nanostructures indicated that the as-prepared electrodes were well-aligned TiO2 NTs with Zn0.5Mg0.5Fe2O4 nanoparticles. The enhanced absorption of the nanocomposite electrode under simulated sun light and visible light regions were observed. The photoelectrochemical performance of the Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays showed excellent sensitive response to visible light. The surface-interface charge separation and transfer of photo-induced electrons and holes were also demonstrated by optical characterization. Meanwhile, the photoelectrochemical investigations clearly illustrated that the Zn0.5Mg0.5Fe2O4@TiO2 composite NTs had more effective photo-conversion capability than the unloaded TiO2 NTs. The saturated photocurrent density of the doped electrode was about 6.5 fold and 4 fold as high as that of the TiO2 NTs under the illumination of visible light and simulated sun light, respectively. In addition, the enhanced photoelectrocatalytic (PEC) ability of the as-prepared electrode was demonstrated in the degradation of toxic p-nitrophenol species. The much improved PEC activity can be attributed to both the visible-light photocatalytic activity of Zn0.5Mg0.5Fe2O4 and the heterostructure between Zn0.5Mg0.5Fe2O4 and TiO2. |
| first_indexed | 2025-11-14T09:21:26Z |
| format | Journal Article |
| id | curtin-20.500.11937-44500 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:21:26Z |
| publishDate | 2015 |
| publisher | Royal Society of Chemistry |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-445002017-09-13T14:13:45Z Synthesis of novel Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays with enhanced photoelectrocatalytic properties Pan, J. Li, Xin Yong Zhao, Q. Zhang, D. A novel nanocomposite electrode with tight and vertically aligned Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays (NTs) has been successfully synthesized via an ultrasonically assisted electrodeposition strategy. The scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray diffraction (XRD) of the composite nanostructures indicated that the as-prepared electrodes were well-aligned TiO2 NTs with Zn0.5Mg0.5Fe2O4 nanoparticles. The enhanced absorption of the nanocomposite electrode under simulated sun light and visible light regions were observed. The photoelectrochemical performance of the Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays showed excellent sensitive response to visible light. The surface-interface charge separation and transfer of photo-induced electrons and holes were also demonstrated by optical characterization. Meanwhile, the photoelectrochemical investigations clearly illustrated that the Zn0.5Mg0.5Fe2O4@TiO2 composite NTs had more effective photo-conversion capability than the unloaded TiO2 NTs. The saturated photocurrent density of the doped electrode was about 6.5 fold and 4 fold as high as that of the TiO2 NTs under the illumination of visible light and simulated sun light, respectively. In addition, the enhanced photoelectrocatalytic (PEC) ability of the as-prepared electrode was demonstrated in the degradation of toxic p-nitrophenol species. The much improved PEC activity can be attributed to both the visible-light photocatalytic activity of Zn0.5Mg0.5Fe2O4 and the heterostructure between Zn0.5Mg0.5Fe2O4 and TiO2. 2015 Journal Article http://hdl.handle.net/20.500.11937/44500 10.1039/c5ra06443k Royal Society of Chemistry restricted |
| spellingShingle | Pan, J. Li, Xin Yong Zhao, Q. Zhang, D. Synthesis of novel Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays with enhanced photoelectrocatalytic properties |
| title | Synthesis of novel Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays with enhanced photoelectrocatalytic properties |
| title_full | Synthesis of novel Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays with enhanced photoelectrocatalytic properties |
| title_fullStr | Synthesis of novel Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays with enhanced photoelectrocatalytic properties |
| title_full_unstemmed | Synthesis of novel Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays with enhanced photoelectrocatalytic properties |
| title_short | Synthesis of novel Zn0.5Mg0.5Fe2O4@TiO2 nanotube arrays with enhanced photoelectrocatalytic properties |
| title_sort | synthesis of novel zn0.5mg0.5fe2o4@tio2 nanotube arrays with enhanced photoelectrocatalytic properties |
| url | http://hdl.handle.net/20.500.11937/44500 |