期刊
APPLIED SURFACE SCIENCE
卷 387, 期 -, 页码 183-189出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2016.06.101
关键词
Photoelectrochemical; Photocatalysis; Titanium dioxide; Pollutants degradation
类别
资金
- Portuguese Foundation for Science and Technology (FCT) [SFRH/BD/79974/2011, SFRH/BD/78827/2011]
- European Research Council within project BI-DSC - Building Integrated Dye sensitized Solar Cells [321315]
- Laboratory for Process Engineering, Environment, Biotechnology and Energy - LEPABE - FEDER funds through COMPETE - Programa Operacional Competitividade e Internacionalizacao (POCI) [POCI-01-0145-FEDER-006939]
- Laboratory for Process Engineering, Environment, Biotechnology and Energy - LEPABE - national funds through FCT
- Fundação para a Ciência e a Tecnologia [SFRH/BD/79974/2011, SFRH/BD/78827/2011] Funding Source: FCT
The photocatalytic activity of a commercial titanium dioxide (P25) and of an in-house prepared P25/graphene composite is assessed according to standard ISO 22197-1:2007. The photoactivity performances of bare and composite TiO2-based materials were further studied by electrochemical impedance spectroscopy (EIS) technique to better understand the function of the graphene in the composite. EIS experiments were performed using a three-electrode configuration, which allows obtaining more detailed information about the complex charge transfer phenomena at the semiconductor/electrolyte interface. The Bandies equivalent circuit was selected as the most suitable for modelling the present photocatalysts. The use of the graphene composite allows a more effective charge separation with lower charge transfer resistance and less e(-)/h(+) recombination on the composite photocatalyst, reflected in the higher values of NO conversion. (C) 2016 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据