期刊
MATERIALS LETTERS
卷 64, 期 12, 页码 1387-1390出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2010.03.033
关键词
TiO2; Thin films; Methylene blue; Photocatalytic degradation; Spray deposition
资金
- University of Ulsan
TiO2 films were successfully deposited onto hot quartz substrates by airbrush spraying using an aqueous dispersion. The films consisting of cubic or cauliflower-shaped structures expressed higher photodegradation efficiencies of methylene blue than those with prism-, flower- or fan-blade-shaped morphology due to the difference in the optical band gap energy. The photodegradation obeyed the pseudo-first-order Langmuir-Hinshelwood kinetic model with apparent rate constants ranging from 3.95 x 10(-3) to 19.38 x 10(-3) min(-1) based on the film surface morphology. (C) 2010 Elsevier B.V. All rights reserved.
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