Electrochemical degradation of malachite green with BDD electrodes: Effect of electrochemical parameters

被引：69

作者：

Guenfoud, Fouad ^{[1
]}

Mokhtari, Malika ^{[1
]}

Akrout, Hanene ^{[2
]}

机构：

[1] Univ Tlemcen, Lab Inorgan Chem & Environm, BP 119, Tilimsen 13000, Algeria

[2] Ctr Water Res & Technol CERTE Technopk, Wastewater Treatment Lab, Soliman 8020, Tunisia

来源：

关键词：

Degradation; Triphenylmethane dye; Malachite green; Electrochemical process; Boron-doped diamond (DDB); BORON-DOPED DIAMOND; ANODIC-OXIDATION; WATER; DYES; DECOLORIZATION; MINERALIZATION; ELECTROLYSIS; EFFLUENT; REMOVAL; WASTES;

D O I：

10.1016/j.diamond.2014.04.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dye malachite green (MG) has found extensive use all over the world in the fish farming industry as a fungicide. It has been suspected to be genotoxic and carcinogenic and it has now become a highly controversial compound due to the risks it poses to the consumers of treated fish. In this context electrochemical oxidation of malachite green (MG) has been studied on a one-compartment batch reactor employing a boron-doped diamond (BDD) as anode and a stainless steel as cathode. The effects of several experimental parameters, such as current density, pH initial and supporting electrolyte were investigated. The optimal conditions were determined such as a current intensity of 32 mA cm(-2), strongly acidic pH (pH = 3), and Na2SO4 as a good supporting electrolyte. Under these conditions, a degradation efficiency of 98% was obtained after 60 min of electrolysis and 91% of chemical oxygen demand (COD) removal after 180 min of electrolysis. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：8 / 14

页数：7

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