Electrochemical oxidative degradation of X-6G dye by boron-doped diamond anodes: Effect of operating parameters.
Chemosphere
; 258: 127368, 2020 Nov.
Article
en En
| MEDLINE
| ID: mdl-32554018
ABSTRACT
Boron-doped diamond (BDD) is an excellent electrode material. As the anode in an electrochemical degradation tank, BDD has been receiving widespread attention for the treatment of azo dye wastewater. In this study, electrochemical oxidation (EO) was applied to electrolyze reactive brilliant yellow X-6G (X-6G) using BDD as the anode and Pt as the cathode. To balance the degradative effects and power consumption in the electrolysis process, the effects of a series of operating parameters, including current density, supporting electrolyte, initial pH, reaction temperature and initial dye concentration, were systematically studied. The oxidative process was analyzed by color removal rate, and the degree of mineralization was evaluated by TOC. The optimal experimental parameters were finally determined 100 mA cm-2, 0.05 M Na2SO4 electrolyte, pH 3.03, 60 °C, and an initial X-6G concentration of 100 mg L-1. As a result, color completely disappeared after 0.75 h of electrolysis, and TOC was removed by 72.8% after 2 h of electrolysis. In conclusion, the EO of a BDD electrode as an anode can be a potent treatment method for X-6G synthetic wastewater.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Contexto en salud:
2_ODS3
Problema de salud:
2_quimicos_contaminacion
Asunto principal:
Compuestos Azo
/
Contaminantes Químicos del Agua
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Bencenosulfonatos
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Boro
/
Purificación del Agua
/
Electrólisis
/
Aguas Residuales
Idioma:
En
Revista:
Chemosphere
Año:
2020
Tipo del documento:
Article
País de afiliación:
China