Vacuum-activated Co2+ and Ti3+ co-modified TiO2 with stable and enhanced photocatalytic activity

Vacuum-activated Co2+ and Ti3+ co-modified TiO2 with stable and enhanced photocatalytic activity Vacuum-activated method was used to prepare Co2+ and Ti3+ co-modified TiO2 with the intention of enhancing visible light photo-catalytic performance, by expanding the visible light absorption and improving the quantum efficiency of the photo-catalytic reaction. The prepared co-modified catalysts were characterized by XRD, UV-DRS, XPS, EPR, etc. The characterization results indicate that the catalysts have a typical anatase crystalline form, and that some Co2+ are incorporated on the surface of TiO2, leading to the formation of Ti3+ and oxygen vacancies. The impurity levels induced by Co2+ and Ti3+ doping are the reason for the enhanced visible light absorption, and the synergistic effect of cobalt, Ti3+ and oxygen vacancies is responsible for the improvement of photo-catalytic activity. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Vacuum-activated Co2+ and Ti3+ co-modified TiO2 with stable and enhanced photocatalytic activity

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Publisher
Springer Netherlands
Copyright
Copyright © 2015 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-015-2225-9
Publisher site
See Article on Publisher Site

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