Electrochemical Oxidation of Reactive Blue 222 on Boron-Doped Diamond Electrodes

被引：0
|
作者：
Rangel, Manuel [1 ]
Nava, Jose L. [1 ]
Peralta-Hernandez, Juan M. [2 ]
Carreno, Gilberto [1 ]
Guerra-Sanchez, Ricardo J. [2 ]
机构：
[1] Univ Guanajuato, Dept Ingn Geomat & Hidraul, Guanajuato 36000, Mexico
[2] Ctr Innovac Aplicada Tecnol Competitivas CIATEC, Dept Invest Ambiental, Guanajuato 37545, Mexico
来源：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2013年 / 8卷 / 03期
关键词：
Degradation of organics; Boron-doped diamond electrode; Reactive blue 222; Electrochemical oxidation; WASTE-WATER; MASS-TRANSPORT; COAGULATION; ELECTROCOAGULATION; MINERALIZATION; ACID;
D O I：
暂无
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Electrochemical oxidation of reactive blue 222 (1.6 mM, 1300 mg dm(-3) COD) in 0.5 M Na2SO4 aqueous media (which resembles a textile wastewater) on a boron-doped diamond electrode (BDD) was studied, using bulk electrolysis. The influence of current density and hydrodynamics was investigated. The degradation rate depends on current density and with hydrodynamics. Generated carboxylic acids such as ascorbic, oxalic, benzoic, citric, fumaric and maleic were detected and quantified by HPLC measures. The electrolysis with a BDD electrode at 20 mA cm(-2) and mean linear flow velocity of 146 cm s(-1)was the only experiment that led to 100% mineralization of reactive blue 222, with an energy consumption of 11.8 KWh m(-3) and fractional integral current efficiency of 0.7.
引用
收藏
页码：3310 / 3320
页数：11
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