Fabrication of TiO2 nanostructured films by spray deposition with high photocatalytic activity of methylene blue

被引：38
|
作者：
Nguyen-Phan, Thuy-Duong [1 ]
Pham, Viet Hung [1 ]
Cuong, Tran Viet [1 ]
Hahn, Sung Hong [2 ]
Kim, Eui Jung [1 ]
Chung, Jin Suk [1 ]
Hur, Seung Hyun [1 ]
Shin, Eun Woo [1 ]
机构：
[1] Univ Ulsan, Sch Chem Engn & Bioengn, Ulsan 680749, South Korea
[2] Univ Ulsan, Dept Phys, Ulsan 680749, South Korea
来源：
MATERIALS LETTERS | 2010年 / 64卷 / 12期
关键词：
TiO2; Thin films; Methylene blue; Photocatalytic degradation; Spray deposition; THIN-FILMS;
D O I：
10.1016/j.matlet.2010.03.033
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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.
引用
收藏
页码：1387 / 1390
页数：4
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