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Article: Chemical oxidative degradation of methyl tert-butyl ether in aqueous solution by Fenton's reagent

TitleChemical oxidative degradation of methyl tert-butyl ether in aqueous solution by Fenton's reagent
Authors
KeywordsDecomposition
Fenton's reagent
Hydroxyl radical
Mechanism
MTBE
Issue Date2004
PublisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphere
Citation
Chemosphere, 2004, v. 55 n. 1, p. 73-79 How to Cite?
AbstractDegradation of methyl tert-butyl ether (MTBE) in aqueous solution by Fenton's reagent (Fe2+ and H2O2) was investigated. Effects of reaction conditions on the oxidation efficiency of MTBE by Fenton's reagent were examined in batch experiments. Under optimum conditions, 15 mM H2O2, 2 mM Fe2+, pH 2.8 and room temperature, the initial 1 mM MTBE solution was reduced by 99% within 120 min. Results showed that MTBE was decomposed in a two-stage reaction. MTBE was first decomposed swiftly based on a Fe2+/H2O2 reaction and then decomposed somewhat less rapidly based on a Fe 3+/H2O2 reaction. The detection of Fe 2+ also supported the theory of the two-stage reaction for the oxidation of MTBE by Fenton's reagent. The dissolved oxygen in the solution decreased rapidly in the first stage reaction, but it showed a slow increase in the second stage with a zero-order kinetics. A reaction mechanism involving two different pathways for the decomposition of MTBE by Fenton's reagent was also proposed. Chemicals including tert-butyl formate, tert-butyl alcohol, methyl acetate and acetone were identified to be the primary intermediates and by-products of the degradation processes. © 2003 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/150260
ISSN
2015 Impact Factor: 3.698
2015 SCImago Journal Rankings: 1.536
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorXu, Xen_HK
dc.contributor.authorZhao, Zen_HK
dc.contributor.authorLi, XYen_HK
dc.contributor.authorGu, Jen_HK
dc.date.accessioned2012-06-26T06:02:49Z-
dc.date.available2012-06-26T06:02:49Z-
dc.date.issued2004en_HK
dc.identifier.citationChemosphere, 2004, v. 55 n. 1, p. 73-79en_HK
dc.identifier.issn0045-6535en_HK
dc.identifier.urihttp://hdl.handle.net/10722/150260-
dc.description.abstractDegradation of methyl tert-butyl ether (MTBE) in aqueous solution by Fenton's reagent (Fe2+ and H2O2) was investigated. Effects of reaction conditions on the oxidation efficiency of MTBE by Fenton's reagent were examined in batch experiments. Under optimum conditions, 15 mM H2O2, 2 mM Fe2+, pH 2.8 and room temperature, the initial 1 mM MTBE solution was reduced by 99% within 120 min. Results showed that MTBE was decomposed in a two-stage reaction. MTBE was first decomposed swiftly based on a Fe2+/H2O2 reaction and then decomposed somewhat less rapidly based on a Fe 3+/H2O2 reaction. The detection of Fe 2+ also supported the theory of the two-stage reaction for the oxidation of MTBE by Fenton's reagent. The dissolved oxygen in the solution decreased rapidly in the first stage reaction, but it showed a slow increase in the second stage with a zero-order kinetics. A reaction mechanism involving two different pathways for the decomposition of MTBE by Fenton's reagent was also proposed. Chemicals including tert-butyl formate, tert-butyl alcohol, methyl acetate and acetone were identified to be the primary intermediates and by-products of the degradation processes. © 2003 Elsevier Ltd. All rights reserved.en_HK
dc.languageengen_US
dc.publisherPergamon. The Journal's web site is located at http://www.elsevier.com/locate/chemosphereen_HK
dc.relation.ispartofChemosphereen_HK
dc.subjectDecompositionen_HK
dc.subjectFenton's reagenten_HK
dc.subjectHydroxyl radicalen_HK
dc.subjectMechanismen_HK
dc.subjectMTBEen_HK
dc.subject.meshHydrogen Peroxide - Chemistryen_US
dc.subject.meshHydrogen-Ion Concentrationen_US
dc.subject.meshIron - Chemistryen_US
dc.subject.meshKineticsen_US
dc.subject.meshMethyl Ethers - Chemistryen_US
dc.subject.meshModels, Chemicalen_US
dc.subject.meshOxidation-Reductionen_US
dc.subject.meshTemperatureen_US
dc.subject.meshWateren_US
dc.titleChemical oxidative degradation of methyl tert-butyl ether in aqueous solution by Fenton's reagenten_HK
dc.typeArticleen_HK
dc.identifier.emailZhao, Z: zyzhao@HKUCC.hku.hken_HK
dc.identifier.emailLi, XY: xlia@hkucc.hku.hken_HK
dc.identifier.emailGu, J: jdgu@hkucc.hku.hk-
dc.identifier.authorityLi, XY=rp00222en_HK
dc.identifier.authorityGu, JD=rp00701en_HK
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.chemosphere.2003.11.017en_HK
dc.identifier.pmid14720549-
dc.identifier.scopuseid_2-s2.0-0346008019en_HK
dc.identifier.hkuros105747-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0346008019&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume55en_HK
dc.identifier.issue1en_HK
dc.identifier.spage73en_HK
dc.identifier.epage79en_HK
dc.identifier.isiWOS:000189219100010-
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridXu, XR=7405293882en_HK
dc.identifier.scopusauthoridZhao, ZY=7404148369en_HK
dc.identifier.scopusauthoridLi, XY=26642887900en_HK
dc.identifier.scopusauthoridGu, JD=7403129601en_HK
dc.identifier.citeulike3871138-

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