Gray TiO2 nanowires synthesized by aluminum-mediated reduction and their excellent photocatalytic activity for water cleaning

Hao Yin; Tianquan Lin; Chongyin Yang; Zhou Wang; Guilian Zhu; Tao Xu; Xiaoming Xie; Fuqiang Huang; Mianheng Jiang

doi:10.1002/chem.201302286

Gray TiO2 nanowires synthesized by aluminum-mediated reduction and their excellent photocatalytic activity for water cleaning

Chemistry. 2013 Sep 27;19(40):13313-6. doi: 10.1002/chem.201302286. Epub 2013 Sep 6.

Authors

Hao Yin¹, Tianquan Lin, Chongyin Yang, Zhou Wang, Guilian Zhu, Tao Xu, Xiaoming Xie, Fuqiang Huang, Mianheng Jiang

Affiliation

¹ Department CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (P.R. China), Fax: (+86) 21-54216360.

PMID: 24014465
DOI: 10.1002/chem.201302286

Abstract

Not always black and white: Gray TiO2 nanowires with high photocatalytic activity have been successfully synthesized by aluminum-mediated reduction in a two-zone furnace. These wires, which possess a core (TiO(2-x))/shell (TiO2 ) structure, exhibit visible-light and even IR absorption with high photocatalytic activity, far exceeding that of commercial Degussa P25. They show high stability in air and water under solar-light irradiation.

Keywords: nanowires; photocatalysis; titanium dioxide; visible-light absorption; water cleaning.