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7. Enhanced visible-light photoactivity of {001} facets dominated TiO2 nanosheets with even distributed bulk oxygen vacancy and Ti3+

Author

Wang, Wei, Lu, Chun-Hua, Ni, Ya-Ru, Song, Jian-Bin, Su, Ming-Xing, and Xu, Zhong-Zi

Subjects
*TITANIUM oxides, *NANOSTRUCTURED materials, *OXYGEN analysis, *TEMPERATURE effect, *PHOTOELECTRONS, *CHEMICAL synthesis
Abstract

Abstract: A series of {001} facets dominated TiO2 nanosheets with even distributed bulk oxygen vacancies and Ti3+ were synthesized by a simple hydrothermal method at different temperatures. The oxygen vacancy and Ti3+ quantity increased with the hydrothermal temperature from 180°C to 240°C. The existed oxygen vacancies and Ti3+ significantly improve the visible-light photoactivity, which can be assigned to the enhanced visible light adsorption, ·OH generation ability and reduced photoelectrons and holes recombination rate. [Copyright &y& Elsevier]

Published
2012
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