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Open Access Highly Accessed Nano Express

Facile synthesis and enhanced visible light photocatalytic activity of N and Zr co-doped TiO2 nanostructures from nanotubular titanic acid precursors

Min Zhang*, Xinluan Yu, Dandan Lu and Jianjun Yang*

Author Affiliations

Key Laboratory for Special Functional Materials of Ministry of Education, Henan University, Kaifeng 475004, People’s Republic of China

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Nanoscale Research Letters 2013, 8:543  doi:10.1186/1556-276X-8-543

Published: 26 December 2013

Abstract

Zr/N co-doped TiO2 nanostructures were successfully synthesized using nanotubular titanic acid (NTA) as precursors by a facile wet chemical route and subsequent calcination. These Zr/N-doped TiO2 nanostructures made by NTA precursors show significantly enhanced visible light absorption and much higher photocatalytic performance than the Zr/N-doped P25 TiO2 nanoparticles. Impacts of Zr/N co-doping on the morphologies, optical properties, and photocatalytic activities of the NTA precursor-based TiO2 were thoroughly investigated. The origin of the enhanced visible light photocatalytic activity is discussed in detail.

Keywords:
TiO2; Nanotubular titanic acid; Photocatalytic activity; Oxygen vacancy