Gas-Phase Photocatalytic Oxidation of Dimethylamine: The Reaction Pathway and Kinetics
Gas-phase photocatalytic oxidation (PCO) and thermal catalytic oxidation (TCO) of dimethylamine (DMA) on titanium dioxide was studied in a continuous flow simple tubular reactor. Volatile PCO products of DMA included ammonia, formamide, carbon dioxide, and water. Ammonia was further oxidized in mino...
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| Format: | Article |
| Language: | English |
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Wiley
2007-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2007/79847 |
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| author | Anna Kachina Sergei Preis Juha Kallas |
| author_facet | Anna Kachina Sergei Preis Juha Kallas |
| author_sort | Anna Kachina |
| collection | DOAJ |
| description | Gas-phase photocatalytic oxidation (PCO) and thermal catalytic oxidation (TCO) of dimethylamine (DMA) on titanium dioxide was studied in a continuous flow simple tubular reactor. Volatile PCO products of DMA included ammonia, formamide, carbon dioxide, and water. Ammonia was further oxidized in minor amounts to nitrous oxide and nitrogen dioxide. Effective at 573 K, TCO resulted in the formation of ammonia, hydrogen cyanide, carbon monoxide, carbon dioxide, and water. The PCO kinetic data fit well to the monomolecular Langmuir-Hinshelwood model, whereas TCO kinetic behaviour matched the first-order process. No deactivation of the photocatalyst during the multiple long-run experiments was observed. |
| format | Article |
| id | doaj-art-2215ea1b29864b0e839d86fc1990b157 |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2007-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-2215ea1b29864b0e839d86fc1990b1572025-02-03T05:57:38ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2007-01-01200710.1155/2007/7984779847Gas-Phase Photocatalytic Oxidation of Dimethylamine: The Reaction Pathway and KineticsAnna Kachina0Sergei Preis1Juha Kallas2Department of Chemical Technology, Lappeenranta University of Technology, P.O. Box 20, Lappeenranta 53851, FinlandDepartment of Chemical Technology, Lappeenranta University of Technology, P.O. Box 20, Lappeenranta 53851, FinlandDepartment of Chemical Technology, Lappeenranta University of Technology, P.O. Box 20, Lappeenranta 53851, FinlandGas-phase photocatalytic oxidation (PCO) and thermal catalytic oxidation (TCO) of dimethylamine (DMA) on titanium dioxide was studied in a continuous flow simple tubular reactor. Volatile PCO products of DMA included ammonia, formamide, carbon dioxide, and water. Ammonia was further oxidized in minor amounts to nitrous oxide and nitrogen dioxide. Effective at 573 K, TCO resulted in the formation of ammonia, hydrogen cyanide, carbon monoxide, carbon dioxide, and water. The PCO kinetic data fit well to the monomolecular Langmuir-Hinshelwood model, whereas TCO kinetic behaviour matched the first-order process. No deactivation of the photocatalyst during the multiple long-run experiments was observed.http://dx.doi.org/10.1155/2007/79847 |
| spellingShingle | Anna Kachina Sergei Preis Juha Kallas Gas-Phase Photocatalytic Oxidation of Dimethylamine: The Reaction Pathway and Kinetics International Journal of Photoenergy |
| title | Gas-Phase Photocatalytic Oxidation of Dimethylamine: The Reaction Pathway and Kinetics |
| title_full | Gas-Phase Photocatalytic Oxidation of Dimethylamine: The Reaction Pathway and Kinetics |
| title_fullStr | Gas-Phase Photocatalytic Oxidation of Dimethylamine: The Reaction Pathway and Kinetics |
| title_full_unstemmed | Gas-Phase Photocatalytic Oxidation of Dimethylamine: The Reaction Pathway and Kinetics |
| title_short | Gas-Phase Photocatalytic Oxidation of Dimethylamine: The Reaction Pathway and Kinetics |
| title_sort | gas phase photocatalytic oxidation of dimethylamine the reaction pathway and kinetics |
| url | http://dx.doi.org/10.1155/2007/79847 |
| work_keys_str_mv | AT annakachina gasphasephotocatalyticoxidationofdimethylaminethereactionpathwayandkinetics AT sergeipreis gasphasephotocatalyticoxidationofdimethylaminethereactionpathwayandkinetics AT juhakallas gasphasephotocatalyticoxidationofdimethylaminethereactionpathwayandkinetics |