Adsorption and Photooxidation of Formamide on Powdered TiO2

Wen Chun Wu; Li Fen Liao; Chih Chung Chuang; Jong Liang Lin

doi:10.1006/jcat.2000.2997

Adsorption and Photooxidation of Formamide on Powdered TiO₂

Wen Chun Wu, Li Fen Liao, Chih Chung Chuang, Jong Liang Lin

Department of Chemistry

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17 Citations (Scopus)

Abstract

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 (η²(N,O)-HCONH) on the surface at 35°C. They are subject to decomposition upon UV illumination in O₂. Adsorbed isocyanate (NCO) and formate (HCOO) and gaseous CO₂ and N₂O are formed in the photooxidation. CO₂ formation mainly results from NCO(a) photodecomposition.

Original language	English
Pages (from-to)	416-419
Number of pages	4
Journal	Journal of Catalysis
Volume	195
Issue number	2
DOIs	https://doi.org/10.1006/jcat.2000.2997
Publication status	Published - 2000 Oct 25

All Science Journal Classification (ASJC) codes

Catalysis
Physical and Theoretical Chemistry

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title = "Adsorption and Photooxidation of Formamide on Powdered TiO2",

abstract = "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 (η2(N,O)-HCONH) on the surface at 35°C. They are subject to decomposition upon UV illumination in O2. Adsorbed isocyanate (NCO) and formate (HCOO) and gaseous CO2 and N2O are formed in the photooxidation. CO2 formation mainly results from NCO(a) photodecomposition.",

author = "Wu, {Wen Chun} and Liao, {Li Fen} and Chuang, {Chih Chung} and Lin, {Jong Liang}",

note = "Funding Information: We gratefully acknowledge the financial support of the National Science Council of the Republic of China (Grant NSC 89-2113-M-006-008) for this research.",

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T1 - Adsorption and Photooxidation of Formamide on Powdered TiO2

AU - Wu, Wen Chun

AU - Liao, Li Fen

AU - Chuang, Chih Chung

AU - Lin, Jong Liang

N1 - Funding Information: We gratefully acknowledge the financial support of the National Science Council of the Republic of China (Grant NSC 89-2113-M-006-008) for this research.

PY - 2000/10/25

Y1 - 2000/10/25

N2 - 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 (η2(N,O)-HCONH) on the surface at 35°C. They are subject to decomposition upon UV illumination in O2. Adsorbed isocyanate (NCO) and formate (HCOO) and gaseous CO2 and N2O are formed in the photooxidation. CO2 formation mainly results from NCO(a) photodecomposition.

AB - 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 (η2(N,O)-HCONH) on the surface at 35°C. They are subject to decomposition upon UV illumination in O2. Adsorbed isocyanate (NCO) and formate (HCOO) and gaseous CO2 and N2O are formed in the photooxidation. CO2 formation mainly results from NCO(a) photodecomposition.

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Adsorption and Photooxidation of Formamide on Powdered TiO₂

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