Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
583318 | Journal of Hazardous Materials | 2008 | 6 Pages |
Abstract
In this article, the ZnO nanorods embedded in highly ordered TiO2 nanotube arrays (ZnO/TiO2 NR/Ts) electrodes were fabricated through two steps: (1) electrosynthesis of TiO2 nanotube arrays (TiO2 NTs) in HF solution by anodization method; (2) followed by cathodic electrodeposition of ZnO embedded in the TiO2 nanotube arrays. The morphological characteristics and structures of ZnO/TiO2 NR/Ts electrodes were examined by field-emission scanning electron microscopy (FE-SEM), energy dispersive X-ray (EDX) spectroscopy, X-ray diffraction (XRD) analysis, and UV-vis spectra. The linear-sweep photovoltammetry response on the ZnO/TiO2 NR/Ts electrode was presented and the photocurrent was dramatically enhanced on the ZnO/TiO2 NR/Ts electrode, comparing with that on bare TiO2 NTs electrode. The photocatalytic and photoelectrocatalytic activity of ZnO/TiO2 NR/Ts electrode was evaluated in degradation of methyl orange (MO) in aqueous solution.
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Authors
Zhonghai Zhang, Yuan Yuan, Linhong Liang, Yuxiao Cheng, Guoyue Shi, Litong Jin,