dc.creatorDIAS, Marlen G.
dc.creatorAZEVEDO, Eduardo B.
dc.date.accessioned2012-10-20T05:34:05Z
dc.date.accessioned2018-07-04T15:51:56Z
dc.date.available2012-10-20T05:34:05Z
dc.date.available2018-07-04T15:51:56Z
dc.date.created2012-10-20T05:34:05Z
dc.date.issued2009
dc.identifierWATER AIR AND SOIL POLLUTION, v.204, n.1/Abr, p.79-87, 2009
dc.identifier0049-6979
dc.identifierhttp://producao.usp.br/handle/BDPI/31827
dc.identifier10.1007/s11270-009-0028-6
dc.identifierhttp://dx.doi.org/10.1007/s11270-009-0028-6
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1628465
dc.description.abstractThis work investigates the solar heterogeneous photocatalytic degradation of three commercial acid dyes: Blue 9 (C.I. 42090), Red 51 (C.I. 45430), and Yellow 23 (C.I. 19140). TiO(2) P25 from Degussa was used as the photocatalyst. The dyes were completely degraded within 120 min of treatment in the following increasing order of removal rate: Blue 9 < Yellow 23 < Red 51. The photocatalytic color removal process was well described by a two-first-order in-series reaction, followed by another first-order reaction. Photolytic experiments showed that this process is quite inefficient and highly selective towards Red 51 only. The dyes` solution was completely decolorized and organic matter removals up to 99% were achieved with photocatalysis. The lack of selectivity and the possibility of using solar light to excite the photocatalyst are promising results regarding the feasibility of this technology.
dc.languageeng
dc.publisherSPRINGER
dc.relationWater Air and Soil Pollution
dc.rightsCopyright SPRINGER
dc.rightsrestrictedAccess
dc.subjectPhotocatalysis
dc.subjectTiO(2)
dc.subjectAcid dye
dc.subjectSolar
dc.subjectDecolorization
dc.titlePhotocatalytic Decolorization of Commercial Acid Dyes using Solar Irradiation
dc.typeArtículos de revistas


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