Decolorization of Methyl Orange Dye at IrO2-SnO2-Sb2O5 Coated Titanium Anodes

被引：44

作者：

Chaiyont, Rattanaporn ^{[1
]}

Badoe, Charles ^{[1
]}

de Leon, Carlos Ponce ^{[1
]}

Nava, Jose L. ^{[2
]}

Recio, Francisco J. ^{[3
]}

Sires, Ignasi ^{[4
]}

Herrasti, Pilar ^{[3
]}

Walsh, Frank C. ^{[1
]}

机构：

[1] Univ Southampton, Energy Technol Res Grp, Electrochem Engn Lab, Southampton SO17 1BJ, Hants, England

[2] Univ Guanajuato, Dept Ingn Geomat & Hidraul, Guanajuato, Mexico

[3] Univ Autonoma Madrid, Fac Ciencias, Dept Quim Fis Aplicada, E-28049 Madrid, Spain

[4] Univ Barcelona, Fac Quim, Dept Quim Fis, Lab Electroquim Mat & Medi Ambient, E-08028 Barcelona, Spain

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2013年 / 36卷 / 01期

关键词：

Dimensionally stable anodes; Electrochemical degradation; Methyl orange; Pechini method; Water treatment; ELECTROCHEMICAL OXIDATION; WASTE-WATER; TEXTILE DYE; DEGRADATION; ELECTRODES; TI/BDD;

D O I：

10.1002/ceat.201200231

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A film of iridium and tin dioxides doped with antimony oxide (IrO2-SnO2-Sb2O5) was deposited onto Ti mesh and plate substrates by the Pechini method. The electrode surface morphology and composition were characterized by SEM-EDS. The ternary oxide coating was used for the anodic oxidation of methyl orange (MO) azo dye. Linear sweep voltammetry was used to identify the electrode potentials that favour MO degradation. Batch electrolyses were then carried out at a constant electrode potential of 1.5, 1.75 and 2.0V vs. SHE using either a three-electrode batch cell or a flow reactor. The dye solutions were totally decolorized via reactive oxygen species, such as (OH)-O-center dot, H2O2 and O-3 formed in situ from water oxidation at the Ti/IrO2-SnO2-Sb2O5 surface.

引用

页码：123 / 129

页数：7

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