Journal
APPLIED SURFACE SCIENCE
Volume 257, Issue 7, Pages 2489-2493Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2010.10.007
Keywords
Photocatalysis; TiO2; X-ray photoelectron spectroscopy (XPS)
Categories
Funding
- Ministry of Education, Science and Technology [2010-0015660, 2010-0017545]
- Korea Ministry of Environment
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TiO2 was treated by water in an ultrasonic bath, resulting in the enhancement of the photocatalytic activity for the decomposition of methylene blue under UV and visible light irradiation. No change in the crystallinity and optical properties of TiO2 by the H2O-treatment was observed. The X-ray photoelectron spectroscopy (XPS) and FT-IR data revealed that the C impurities were oxidized by this treatment, indicating that the change in the structure of the C impurities plays a pivotal role in the photocatalytic activity of TiO2. (C) 2010 Elsevier B.V. All rights reserved.
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