Photocatalytic Activity of (B, N)-Codoped Titanate Nanotubes

Authors


  • This work was financially supported by the International Science & Technology Cooperation Foundation of Gansu Provincial, China (Grant No. 090WCGA903), Fundamental Research Funds for the Central Universities (Grant No. lzujbky-2010-83), and National Science Foundation for Distinguished Young Scholars (Grant No. 50925206).

Author to whom correspondence should be addressed. e-mail: wyh@lzu.edu.cn

Abstract

The multi-walled (B, N)-codoped titanate nanotubes (TNTs) have been prepared via a simple hydrothermal route. Such (B, N)-codoped TNTs showed a decrease in band gap energy as compared with the undoped TNTs. The effect of the doping amounts of B and N on the photocatalytic activity of TNTs was studied. Among the as-prepared samples, (1% B, 1% N)-codoped TNTs exhibited the best photocatalytic activity for methyl orange decomposition under Ultraviolet–Visible (UV–Vis) light irradiation. The photocatalytic activity of (1% B, 1% N)-codoped TNTs is twice as high as that of the undoped TNTs.

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