期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 550, 期 -, 页码 137-143出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2012.09.069
关键词
TiO2 nanorod arrays; Co3O4; Heterostructure; Photoelectrochemical property
资金
- NSFC [60976055]
- SRFDP [20110191110034]
- Innovative Talent Funds for 985 Project [WLYJSBJRCTD201101]
- Chongqing University
A novel heterostructure of Co3O4-modified TiO2 nanorod arrays (NRs) is fabricated by a facile two-step solution-based method. First, TiO2 NRs grow on fluorine-doped tin oxide (FTO) conductive glass substrates by hydrothermal method. Afterward, Co3O4 nanoparticles were coated on the TiO2 NRs using a photochemical coating method. The samples were characterized by X-ray diffraction, field emission electron-scanning microscopy, transmission electron microscopic, X-ray photoelectron spectroscopy and UV-visible spectroscopy. For the first time, the photoelectrochemical (PEC) properties of the electrode made by the Co3O4-modified TiO2 NRs were investigated under visible-light irradiation. The results showed remarkably enhanced visible light PEC response of the Co3O4-modified TiO2 NRs in comparison with the pure TiO2 NRs, offering attractive perspectives for applications of the Co3O4-modified TiO2 NRs in solar cells or photocatalysts. (C) 2012 Elsevier B.V. All rights reserved.
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