Adsorption and photooxidation of formamide on powdered TiO2

被引：15

作者：

Wu, WC ^{[1
]}

Liao, LF ^{[1
]}

Chuang, CC ^{[1
]}

Lin, JL ^{[1
]}

机构：

[1] Natl Cheng Kung Univ, Dept Chem, Tainan 701, Taiwan

来源：

JOURNAL OF CATALYSIS | 2000年 / 195卷 / 02期

关键词：

formamide; TiO2; adsorption; photooxidation; Fourier-transformed infrared spectroscopy;

D O I：

10.1006/jcat.2000.2997

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：

Adsorption and photooxidation of formamide on TiO2 have been studied by Fourier-transformed infrared spectroscopy. Formamide is adsorbed with intact molecular form (HCONH2(a)) and dissociative form (eta (2)(N,O)-HCONH) on the surface at 35 degreesC. They are subject to decomposition upon UV illumination in O-2. Adsorbed isocyanate (NCO) and formate (HCOO) and gaseous CO2 and N2O are formed-in the photooxidation. CO2 formation mainly results from NCO(a) photodecomposition. (C) 2000 Academic Press.

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收藏

页码：416 / 419

页数：4

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