The electronic and optical properties of Eu/Si-codoped anatase TiO{sub 2} photocatalyst

Journal Article · Mon Mar 05 00:00:00 EST 2012 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3692750· OSTI ID:22025458

Yanming, Lin; Zhenyi, Jiang; Xiaodong, Zhang ^[1]; Xiaoyun, Hu ^[2]; Jun, Fan ^[3]

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1. Institute of Modern Physics, Northwest University, Xi'an 710069 (China)
2. Department of Physics, Northwest University, Xi'an 710069 (China)
3. School of Chemical Engineering, Northwest University, Xi'an 710069 (China)

The electronic and optical properties of Eu/Si-codoped anatase TiO{sub 2} are investigated using the density functional theory. The calculated results show that the synergistic effects of Eu/Si codoping can effectively extend the optical absorption edge, which can lead to higher visible-light photocatalytic activities than pure anatase TiO{sub 2}. To verify the reliability of our calculated results, nanocrystalline Eu/Si-codoped TiO{sub 2} is prepared by a sol-gel-solvothermal method, and the experimental results also indicate that the codoping sample exhibits better absorption performance and higher photocatalytic activities than pure TiO{sub 2}.

• OSTI ID: 22025458
• Journal Information: Applied Physics Letters, Vol. 100, Issue 10; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
CRYSTALS
DENSITY FUNCTIONAL METHOD
EUROPIUM
NANOSTRUCTURES
OPTICAL PROPERTIES
PERFORMANCE
PHOTOCATALYSIS
SEMICONDUCTOR MATERIALS
SILICON
SOL-GEL PROCESS
TITANIUM OXIDES
ULTRAVIOLET SPECTRA
VISIBLE RADIATION
VISIBLE SPECTRA