Photocatalytic Activity of High Aspect Ratio TiO₂ Nanorods

In this article, TiO₂ nanorods (aspect ratio >20) were prepared through a polyol process and doped with metal ions (Cu²⁺, Ni²⁺, Fe³⁺, and Cr³⁺). Compared with TiO₂ nanoparticles, the TiO₂ nanorods displayed relatively higher photocatalytic activity for the degradation of copper sulfophthalocyanine. Moreover, the photocatalytic activity was greatly enhanced when the metal ions were doped in the TiO₂ nanorods.

Keywords:

• TiO₂ nanorods
• high aspect ratio
• polyol process
• photocatalyst

Acknowledgments

This work was supported by Excellent Young Teacher Program and Research Foundation of Returning Student Abroad, MOE of China. We thank the Shanghai Education Committee for support.