Citation: HUANG Yi-Cao, ZHAO Zhe-Fei, LI Shi-Xiong, DI Jing, ZHENG Hua-Jun. Preparation and Photocatalytic Properties of Fe2O3/TiO2 Nanotube Arrays[J]. Chinese Journal of Inorganic Chemistry, ;2015, (1): 133-139. doi: 10.11862/CJIC.2015.037
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TiO2 nanotube array was prepared by anodic oxidation method on the titanium substrate, and Fe2O3 nanoparticles was successfully deposited on TiO2 nanotube array by a chemical bath method. Scanning electron microscopy (SEM), X-ray diffraction (XRD) and UV-Vis diffuse reflectance spectroscopy was applied to characterize their properties and the photoelectrochemical properties and the performance of photocatalytic degradation of methylene blue was investigated. The results indicated that the Fe2O3 modification not only broadened the absorption spectrum of TiO2 nanotube arrays to the visible light region, but also increased the photocurrent. The photocurrent response of Fe2O3 modified TiO2 nanotube arrays was 9 times higher than undecorated TiO2 nanotube arrays. In the photocatalytic reaction, the highest methylene blue degradation rate can reach 80%, which was 30% higher than the bare TiO2 nanotube arrays.
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