Journal
MATERIALS LETTERS
Volume 145, Issue -, Pages 180-183Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2015.01.030
Keywords
Semiconductor; Solar energy material; TiO2; Microstructure
Funding
- Startup Foundation for Introducing Talent of NUIST [S8113101001]
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Transfer and aggregation of photogenerated electrons and holes on anatase TiO2 sphere with wholly exposed (0 0 1) facets are investigated by Pt oriented-deposition. Results indicate the Pt particles are all deposited on the edge, which is served for photo-reduction, between the {0 0 1} and {1 0 1} facets. The {0 0 1} facets will serve for photo-oxidation. This structure is superior to that of Pt random-deposition, resulting in higher efficiency in separating photogenerated electrons and holes. Proper amount of deposited Pt is also an important factor in affecting the photocatalytic activity of TiO2. Photocatalytic degradation of RhB and phenol suggest the as-prepared photocatalysts can be efficient candidates for decomposing organic pollutants. (C) 2015 Elsevier B.V. All rights reserved.
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