Catalysts (Jan 2013)

Preparation and Photocatalytic Properties of Sr2−xBaxTa3O10−yNz Nanosheets

  • Tatsumi Ishihara,
  • Hidehisa Hagiwara,
  • Shintaro Ida,
  • Yohei Okamoto

DOI
https://doi.org/10.3390/catal3010001
Journal volume & issue
Vol. 3, no. 1
pp. 1 – 10

Abstract

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Sr2−xBaxTa3O10−yNz (x = 0.0, 0.5, 1.0) nanosheets were prepared by exfoliating layered perovskite compounds (CsSr2−xBaxTa3O10−yNz). The Sr1.5Ba0.5Ta3O9.7N0.2 nanosheet showed the highest photocatalytic activity for H2 production from the water/methanol system among the Sr2−xBaxTa3O9.7N0.2 nanosheets prepared. In addition, Rh-loaded Sr1.5Ba0.5Ta3O9.6N0.3 nanosheet showed the photocatalytic activity for oxygen and hydrogen production from water. The ratio of hydrogen to oxygen evolved was around two. These results indicate that the Rh-loaded Sr1.5Ba0.5Ta3O9.6N0.3 nanosheet is a potential catalyst for photocatalytic water splitting.

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