ELECTRODEGRADATION OF PONCEAU 2R USING DIMENSIONALLY-STABLE ANODES AND Ti/Pt

被引：9

作者：

Paulino Ribeiro, Francisco Wirley ^{[1
]}

Oliveira, Sameque do Nascimento ^{[1
]}

de Lima-Neto, Pedro ^{[1
]}

Correia, Adriana Nunes ^{[1
]}

Mascaro, Lucia Helena ^{[2
]}

de Matos, Roberto ^{[2
]}

Pereira de Souza, Ernesto Chaves ^{[2
]}

de Vasconcelos Lanza, Marcos Roberto ^{[3
]}

机构：

[1] Univ Fed Ceara, Ctr Ciencias, Dept Quim Analit & Fis Quim, Campus Pici, BR-60455970 Fortaleza, CE, Brazil

[2] Univ Fed Sao Carlos, Dept Quim, BR-13565905 Sao Carlos, SP, Brazil

[3] Univ Sao Paulo, Inst Quim Sao Carlos, BR-13560970 Sao Carlos, SP, Brazil

来源：

QUIMICA NOVA | 2013年 / 36卷 / 01期

关键词：

Ponceau; 2R; DSA; Ti/Pt; ELECTROCHEMICAL DEGRADATION; WASTE-WATER; XYLIDINE PONCEAU; OXIDATION; DECOLORIZATION; PERFORMANCE; DIAMOND; DECOLORATION; POLLUTANTS; ORGANICS;

D O I：

10.1590/S0100-40422013000100016

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 color of the Ponceau 2R and the highest percentage removal of total organic carbon was obtained at 200 mA cm(-2). Despite not having been observed complete mineralization, approximately80% removal of aromatic rings was estimated, resulting in drastic reduction of toxicity of the sample.

引用

页码：85 / 90

页数：6

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