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Mechanism of photocatalytic oxidation of gaseous ethanol
Shao, C. L., Pan, D. X., Zhang, R. X. and Hou, H. Q. Mechanism of photocatalytic oxidation of gaseous ethanol Chemical Papers, Vol.61, No. 1, 2007, 51-54
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Author(s) |
Shao, C. L.
Pan, D. X.
Zhang, R. X.
Hou, H. Q.
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| Title |
Mechanism of photocatalytic oxidation of gaseous ethanol
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| Journal name |
Chemical Papers
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| Publication date |
2007
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| Year available |
2007
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| Volume number |
61
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| Issue number |
1
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| ISSN |
0366-6352
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| Start page |
51
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| End page |
54
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2007
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| Language |
english
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| Subject |
290000 Engineering and Technology
291100 Environmental Engineering
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| Abstract/Summary |
A photocatalytic film reactor with a titanium dioxide film was used for oxidation of gaseous ethanol at 253.7 nm. The influences of partial pressures of oxygen and water vapour in different carrier gases were studied. The rate of photocatalytic oxidation of ethanol was significantly affected by the content of oxygen but water vapour had no effect. It was suggested that the photocatalytic transformation of ethanol follows a direct oxidation mechanism where the interaction of ethanol with positive hole gives first cationic free radical of ethanol, which is converted by multipathway reactions with oxygen to acetaldehyde, ethyl formate, and ethyl acetate.
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