Photocatalytic hydrogen production from water/methanol solutions over highly ordered Ag-SrTiO3 nanotube arrays

  • Liu J
  • Sun Y
  • Li Z
 et al. 
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The highly ordered Ag-SrTiO3 nanotube arrays (NTAs) with uniform size were successfully synthesized by a combination of anodic oxidation, hydrothermal process and photocatalytic reduction method. X-ray photoelectron spectroscopy analysis reveals that Ag exists in the form of metallic silver, which is in good agreement with the X-ray diffraction characterization. Moreover, the UV-vis diffuse reflectance spectra indicate that Ag-SrTiO 3 NTAs have a strong absorption in the visible region which is attributed to the plasmon resonance of silver nanoparticles. After Ag loading, a further improvement of the photocatalytic activity for hydrogen production was obtained. Based on the above results, a possible electron-hole transfer mechanism was also assumed. ?? 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights.

Author-supplied keywords

  • Ag-SrTiO3 nanotube arrays
  • Hydrogen production
  • Photocatalysis

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  • Jiawen Liu

  • Yue Sun

  • Zhonghua Li

  • Shuying Li

  • Jingxiang Zhao

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