FTIR study of gas-phase alcohols photocatalytic degradation with TiO2 and AC-TiO2

被引：108
作者：
Araña, J [1 ]
Doña-Rodríguez, JM [1 ]
Cabo, CGI [1 ]
González-Díaz, O [1 ]
Herrera-Melián, JA [1 ]
Pérez-Peña, J [1 ]
机构：
[1] Univ Las Palmas Gran Canaria, Photocatalysis & Electrochem Lab, E-35017 Las Palmas Gran Canaria, Spain
来源：
APPLIED CATALYSIS B-ENVIRONMENTAL | 2004年 / 53卷 / 04期
关键词：
TiO2; activated carbon (AC); gas-phase; alcohols; photocatalysis; FTIR;
D O I：
10.1016/j.apcatb.2004.04.024
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：
In this paper the degradation of gaseous alcohols (methanol, ethanol, 1-propanol and 1-butanol) has been studied in a continuous reaction system. Methanol and ethanol, but not 1-propanol and 1-butanol, have caused the catalyst bare-TiO2 to become deactivated. The catalyst containing activated carbon, AC-TiO2, has not shown almost deactivation in any experiment. To explain this behaviour variation, a thorough FTIR study concerning the interaction of gaseous alcohols with the catalyst surface and the effect of light on the process was performed. Thus, the interaction of the different catalysts with the selected alcohols, the formed species and the hydroxyl group evolution under irradiation was studied. (C) 2004 Elsevier B.V. All rights reserved.
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收藏
页码：221 / 232
页数：12
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