Osugi, Marly E. [UNESP]Carneiro, Patrícia A. [UNESP]Zanoni, Maria Valnice Boldrin [UNESP]2014-05-272014-05-272003-10-02Journal of the Brazilian Chemical Society, v. 14, n. 4, p. 660-665, 2003.0103-5053http://hdl.handle.net/11449/67442Turquoise blue 15 (AT15) is a reactive dye widely used in the textile industry to color natural fibers. The presence of these dyes in effluent and industrial wastewater is of considerable interest due ecotoxicological and environmental problems. The electrochemical reduction of this dye has been investigated in aqueous solution using cyclic voltammetry, controlled potential electrolysis and cathodic stripping voltammetry. Optimum conditions for dye discoloration by controlled potential electrolysis use an alkaline medium. Using cathodic stripping voltammetry a linear calibration graph was obtained from 5.00×10-8 mol L-1 to 1.00×10 -6 mol L-1 of AT15 at pH 4.0, using accumulation times of 180 and 240 s and an accumulation potential of 0.0 V. The proposed method was applied in direct determination of the dye in tap water and in textile industry effluent.660-665engElectroanalysisReactive dyesReduction of phthalocyaninesTurquoise Blue 15dyephthalocyaninetap wateralkalinityaqueous solutionconference paperecotoxicologyeffluentelectrochemistryelectrolysisenvironmental impactindustrial wastenatural fiber productionpotentiometryreductiontextiletextile industrywaste waterTrabalho apresentado em evento10.1590/S0103-50532003000400025S0103-50532003000400025WOS:000184902600025Acesso aberto2-s2.0-01414944162-s2.0-0141494416.pdf0000-0002-2296-1393