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http://acervodigital.unesp.br/handle/11449/25825
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DC Field | Value | Language |
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dc.contributor.author | Osugi, Marly E. | - |
dc.contributor.author | Rajeshwar, Krishnan | - |
dc.contributor.author | Ferraz, Elisa R. A. | - |
dc.contributor.author | de Oliveira, Danielle P. | - |
dc.contributor.author | Araújo, Angela Regina | - |
dc.contributor.author | Zanoni, Maria Valnice Boldrin | - |
dc.date.accessioned | 2014-05-20T14:19:18Z | - |
dc.date.accessioned | 2016-10-25T17:41:00Z | - |
dc.date.available | 2014-05-20T14:19:18Z | - |
dc.date.available | 2016-10-25T17:41:00Z | - |
dc.date.issued | 2009-02-28 | - |
dc.identifier | http://dx.doi.org/10.1016/j.electacta.2008.07.015 | - |
dc.identifier.citation | Electrochimica Acta. Oxford: Pergamon-Elsevier B.V. Ltd, v. 54, n. 7, p. 2086-2093, 2009. | - |
dc.identifier.issn | 0013-4686 | - |
dc.identifier.uri | http://hdl.handle.net/11449/25825 | - |
dc.identifier.uri | http://acervodigital.unesp.br/handle/11449/25825 | - |
dc.description.abstract | Degradation of Disperse Orange 1, Disperse Red 1 and Disperse Red 13 dyes has been performed using electrochemical oxidation on Pt electrode, chemical chlorination and photoelectrochemical oxidation on Ti/TiO(2) thin film electrodes in NaCl or Na(2)SO(4) medium. 100% discoloration was obtained for all tested methods after 1 h of treatment. Faster color removal was obtained by photoelectrocatalytic oxidation in 0.1 mol L(-1) NaCl pH 4.0 under UV light and an applied potential of +1.0V (vs SCE reference electrode), which indicates also values around 60% of TOC removal. The conventional chlorination method and electrochemical oxidation on Pt electrode resulted in negligible reduction of TOC removal. All dyes showed positive mutagenic activity in the Salmonella/microsome assay with the strain TA98 in the absence and presence of S9 (exogenous metabolic activation). Nevertheless, there is complete reduction of the mutagenic activity after 1 h of photoelectrocatalytic oxidation, suggesting that this process would be good option to remove disperse azo dyes from aqueous media. (C) 2008 Elsevier Ltd. All rights reserved. | en |
dc.format.extent | 2086-2093 | - |
dc.language.iso | eng | - |
dc.publisher | Pergamon-Elsevier B.V. Ltd | - |
dc.source | Web of Science | - |
dc.subject | Active chlorine | en |
dc.subject | Disperse azo dye | en |
dc.subject | Photoelectrocatalytic oxidation | en |
dc.subject | Mutagenic activity | en |
dc.subject | Ti/TiO(2) electrodes | en |
dc.title | Comparison of oxidation efficiency of disperse dyes by chemical and photoelectrocatalytic chlorination and removal of mutagenic activity | en |
dc.type | outro | - |
dc.contributor.institution | Universidade Estadual Paulista (UNESP) | - |
dc.contributor.institution | Universidade de São Paulo (USP) | - |
dc.contributor.institution | Univ Texas Arlington | - |
dc.description.affiliation | UNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil | - |
dc.description.affiliation | Univ São Paulo, Fac Ciencias Farmaceut Ribeirao Preto, BR-14040903 Ribeirao Preto, SP, Brazil | - |
dc.description.affiliation | Univ Texas Arlington, Ctr Renewable Energy Sci & Technol, Dept Chem & Biochem, Arlington, TX 76019 USA | - |
dc.description.affiliationUnesp | UNESP, Inst Quim, BR-14800900 Araraquara, SP, Brazil | - |
dc.identifier.doi | 10.1016/j.electacta.2008.07.015 | - |
dc.identifier.wos | WOS:000264925100025 | - |
dc.rights.accessRights | Acesso restrito | - |
dc.relation.ispartof | Electrochimica Acta | - |
dc.identifier.orcid | 0000-0002-2296-1393 | en |
dc.identifier.orcid | 0000-0001-7616-9652 | pt |
Appears in Collections: | Artigos, TCCs, Teses e Dissertações da Unesp |
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