2013
DOI: 10.1590/s0100-40422013000100016
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Eletrodegradação de Ponceau 2R utilizando ânodos dimensionalmente estáveis e Ti/Pt

Abstract: Recebido em 23/4/12; aceito em 13/8/12; publicado na web em 27/11/12 ELECTRODEGRADATION OF PONCEAU 2R USING DIMENSIONALLY-STABLE ANODES AND Ti/Pt. This paper reports the electrochemical degradation of the azo dye Ponceau 2R under galvanostatic electrolysis in the 1 to 200 mA cm -2 range at room temperature using dimensionally-stable anodes of oxygen (DSA-O 2 ), chlorine (DSA-Cl 2 ) and a titanium electrode of platinum coated with platinum oxide (Ti/Pt). The methodology applied was efficient for removing the co… Show more

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Cited by 9 publications
(3 citation statements)
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References 30 publications
(39 reference statements)
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“…Figure 3 shows that when MMO electrodes were used as anodes, only a degradation of organic matter of 1.70% and 3.34% was achieved for MMO-Cl 2 and MMO-O 2 , respectively. Similar results were obtained by Ribeiro, et al [35]. The researchers used the MMO-Cl 2 and MMO-O 2 electrodes as anodes to study the electrochemical degradation of 50 mg/L of the Ponceau 2R dye with NaClO 4 as a supporting electrolyte at different values of current density and at room temperature.…”
Section: Anodic Oxidation Of Winery Wastewatersupporting
confidence: 74%
See 1 more Smart Citation
“…Figure 3 shows that when MMO electrodes were used as anodes, only a degradation of organic matter of 1.70% and 3.34% was achieved for MMO-Cl 2 and MMO-O 2 , respectively. Similar results were obtained by Ribeiro, et al [35]. The researchers used the MMO-Cl 2 and MMO-O 2 electrodes as anodes to study the electrochemical degradation of 50 mg/L of the Ponceau 2R dye with NaClO 4 as a supporting electrolyte at different values of current density and at room temperature.…”
Section: Anodic Oxidation Of Winery Wastewatersupporting
confidence: 74%
“…There is a limited number of reports that have compared the efficiency of different electrocatalytic materials during the AO process in different electrolytic media [21,[33][34][35][36].…”
Section: Introductionmentioning
confidence: 99%
“…A curva de calibração apresentou um coe ciente de correção da reta de 0,998. O percentual de descoloração da solução foi calculado através da Equação (1), usando os valores de absorbância antes (Abs o ) e após a reação (Abs t ) (Ribeiro et al, 2013).…”
Section: Materiais E Métodosunclassified