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Photocatalytic Properties of Graphdiyne and Graphene Modified TiO2: From Theory to Experiment

  • Nailiang YangEmail author
Chapter
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Part of the Springer Theses book series (Springer Theses)

Abstract

The chemical structure and electronic properties of two-dimensional (2D) carbon-supported TiO2, TiO2-graphdiyne, and TiO2-graphene composites have been studied by first-principles density functional theory. Calculation results show that TiO2 (001)-graphdiyne composites possess superior charge separation and oxidation properties, having the longest lifetimes of photoexcited carriers among all of the 2D composites containing TiO2 of different facets. Our experimental results further proved that TiO2 (001)-graphdiyne composites could be a promising photocatalyst. For photocatalytic degradation of methylene blue, the rate constant of the TiO2 (001)-graphdiyne composite is 1.63±0.15 times that of the pure TiO2 (001) and 1.27±0.12 times that of the TiO2 (001)-graphene composite.

Keywords

Methylene Blue Reduce Graphene Oxide Pure TiO2 Valence Band Maximum Conduction Band Minimum 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  1. 1.Institute of Process EngineeringChinese Academy of SciencesBeijingChina

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