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

页码：1387 / 1390

页数：4

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