Preparation and photocatalyic properties of TiO2-P25 film prepared by spray pyrolysis method

被引：21
作者：
Dostanic, J. [1 ]
Grbic, B. [1 ]
Radic, N. [1 ]
Stojadinovic, S. [2 ]
Vasilic, R. [3 ]
Vukovic, Z. [1 ]
机构：
[1] Univ Belgrade, Inst Chem Technol & Met, Dept Catalysis & Chem Engn, Belgrade 11000, Serbia
[2] Univ Belgrade, Fac Phys, Belgrade 11000, Serbia
[3] Educons Univ, Fac Environm Governance & Corp Responsibil, Sremska Kamenica, Serbia
来源：
APPLIED SURFACE SCIENCE | 2013年 / 274卷
关键词：
TiO2; film; Photocatalysis; Spray pyrolysis; Photoactivity; Stainless steel; AZO PYRIDONE DYE; PHASE-TRANSFORMATION; OPTICAL-PROPERTIES; WATER; DEGRADATION; REACTOR; PHOTODEGRADATION; BIODEGRADATION; DEPOSITION; DYESTUFFS;
D O I：
10.1016/j.apsusc.2013.03.052
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
TiO2 films were synthesized by immobilization of Degussa P25 powders on stainless steel support by spray pyrolysis technique. After preparation, the films were annealed at different temperatures in order to obtain materials with different morphological, structural, and textural properties. The photocatalytic activity of obtained films was investigated by monitoring the degradation of arylazo pyridone dye. The results showed that with increasing annealing temperature the photoactivity of films decreased. A comparative photocatalytic activity of the synthesized films and corresponding commercial powders was evaluated under the same experimental conditions. Films generally showed lower photoactivity than powders, due to mass transfer limitations inside film layer, smaller surface exposure to light, and possible presence of metal ions in film layer. (C) 2013 Elsevier B.V. All rights reserved.
引用
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页码：321 / 327
页数：7
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