Research on Chemical Intermediates

, Volume 39, Issue 9, pp 3981–3989

Effect of the TiO2 shell thickness on the photocatalytic activity with ZnO/TiO2 core/shell nanorod microspheres

  • Min Mo
  • Jiansheng Tang
  • Min Zheng
  • Qi Lu
  • Yao Chen
  • Hongru Guan
Article

DOI: 10.1007/s11164-012-0913-2

Cite this article as:
Mo, M., Tang, J., Zheng, M. et al. Res Chem Intermed (2013) 39: 3981. doi:10.1007/s11164-012-0913-2

Abstract

TiO2 shell has been fabricated directly on the surface ZnO nanorod microspheres by thermal decomposition of tetrabutyl titanate in octadecane. The thickness of the coverage with TiO2 was controlled by the amount of tetrabutyl titanate added. The core/shell nanorods have anatase TiO2 shells after annealed at 873 K in air. This method enables us to tailor the thickness of TiO2 shell for desired photooxidation application in phenol degradation. ZnO nanorods showed a relatively low efficiency in the photooxidation reaction of phenol. After coating atanase TiO2, the photocatalytic activity of the ZnO/TiO2 core/shell nanocomposites was significantly enhanced in photocatalytic degradation of phenol. It was also found that the thickness of the TiO2 shell affected the catalytic efficiency of ZnO/TiO2 core/shell nanorod microspheres.

Keywords

ZnO/TiO2 core/shellPhotocatalytic degradationPhenolThermolysis

Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • Min Mo
    • 1
  • Jiansheng Tang
    • 1
  • Min Zheng
    • 1
  • Qi Lu
    • 1
  • Yao Chen
    • 1
  • Hongru Guan
    • 1
  1. 1.Department of Educational ScienceHunan First Normal UniversityChangshaChina