標題: Characteristics of photocatalytic oxidation of gaseous 2-propanol using thin-film TiO2 photocatalyst
作者: Chang, CP
Chen, JN
Lu, MC
環境工程研究所
Institute of Environmental Engineering
關鍵字: photocatalysis;titanium dioxide;kinetics;2-propanol;acetone
公開日期: 1-十一月-2004
摘要: This work presents a photocatalysis-based method to treat and purify air because of its broad applicability to common, oxidizable, air contaminants. The effect of oxygen content, temperature, water vapor, and 2-propanol concentration on the TiO2 surface was investigated. The rate of 2-propanol decomposition increased with increasing the oxygen content, but was reduced at temperatures higher than 100degreesC. When water vapor concentration was in the range of 10-355 mmol m(-3), the rate of 2-propanol decomposition was proportional to the water content. However, an opposite result was observed at a higher concentration of water vapor. 2-Propanol was photooxidized to acetone, and eventually to carbon dioxide and water. The kinetic model of 2-propanol photooxidation was successfully developed by the competitive Langmuir-Hinshelwood rate form, incorporating the inhibition effect coming from the formation of acetone. (C) 2004 Society of Chemical Industry.
URI: http://dx.doi.org/10.1002/jctb.1128
http://hdl.handle.net/11536/25660
ISSN: 0268-2575
DOI: 10.1002/jctb.1128
期刊: JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
Volume: 79
Issue: 11
起始頁: 1293
結束頁: 1300
顯示於類別:期刊論文


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  1. 000224740900015.pdf