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dc.contributor.authorChang, CPen_US
dc.contributor.authorChen, JNen_US
dc.contributor.authorLu, MCen_US
dc.date.accessioned2014-12-08T15:41:27Z-
dc.date.available2014-12-08T15:41:27Z-
dc.date.issued2003en_US
dc.identifier.issn1093-4529en_US
dc.identifier.urihttp://hdl.handle.net/11536/28203-
dc.identifier.urihttp://dx.doi.org/10.1081/ESE-120019869en_US
dc.description.abstractThis 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 acetone concentration on the photooxidation of acetone on TiO2 surface was investigated. The photocatalytic decomposition reaction of acetone obeyed the first-order equation. The decomposition rate increased with increasing the oxygen content. The rate of acetone oxidation increased when water vapor increased from, 18.7 to 417 muM and decreased at higher than 417 muM. The conversion and mineralization of acetone decreased at higher than 138degreesC. The initial rate of acetone degradation can be well described by the Langmuir-Hinshelwood rate form. The specific reaction rate constant and the equilibrium. adsorption are 15.8 muM/min and 0.0671 L/muM, respectively. The difference between observed and estimated half-lives became larger when the initial concentration of acetone was increased. It is assumed that the intermediates competed with parent compound so that delayed the half-life. The detection of CO2 production can support this assumption.en_US
dc.language.isoen_USen_US
dc.subjectacetoneen_US
dc.subjectphotocatalysisen_US
dc.subjecttitanium dioxideen_US
dc.subjectLangmuir-Hinshelwood equationen_US
dc.subjectkineticsen_US
dc.subjectintermediate competitionen_US
dc.titleHeterogeneous photocatalytic oxidation of acetone for air purification by near UV-irradiated titanium dioxideen_US
dc.typeArticleen_US
dc.identifier.doi10.1081/ESE-120019869en_US
dc.identifier.journalJOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERINGen_US
dc.citation.volume38en_US
dc.citation.issue6en_US
dc.citation.spage1131en_US
dc.citation.epage1143en_US
dc.contributor.department環境工程研究所zh_TW
dc.contributor.departmentInstitute of Environmental Engineeringen_US
dc.identifier.wosnumberWOS:000183019600012-
dc.citation.woscount14-
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