| Literature DB >> 23350627 |
Nailiang Yang1, Yuanyuan Liu, Hao Wen, Zhiyong Tang, Huijun Zhao, Yuliang Li, Dan Wang.
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.Entities:
Year: 2013 PMID： 23350627 DOI： 10.1021/nn305288z
Source DB: PubMed Journal: ACS Nano ISSN： 1936-0851 Impact factor: 15.881