Electrochemical abatement of amaranth dye solutions using individual or an assembling of flow cells with Ti/Pt and Ti/Pt-SnSb anodes

被引：41

作者：

Fajardo, Ana S. ^{[1
]}

Martins, Rui C. ^{[1
]}

Silva, Djalma R. ^{[2
]}

Quinta-Ferreira, Rosa M. ^{[1
]}

Martinez-Huitle, Carlos A. ^{[2
]}

机构：

[1] Univ Coimbra, Dept Chem Engn, CIEPQPF Chem Proc Engn & Forest Prod Res Ctr, P-3030790 Coimbra, Portugal

[2] Univ Fed Rio Grande do Norte, Inst Chem, LEAA, BR-59078970 Natal, RN, Brazil

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2017年 / 179卷

关键词：

Wastewater electrochemical process; Assembling of electrochemical flow cells in series; Active anode; Azo dye; Cyclic voltammetry; BORON-DOPED DIAMOND; WASTE-WATER; TEXTILE EFFLUENT; DEGRADATION; OXIDATION; ELECTRODE; ACID; INCINERATION; DECONTAMINATION; WASTEWATERS;

D O I：

10.1016/j.seppur.2017.01.029

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Electrochemical measurements and bulk electrolysis using individual or an assembling of flow cells in series were performed to study the anodic oxidation of amaranth dye solutions with Ti/Pt and Ti/Pt-SnSb anodes. Polarisation curves demonstrated that Ti/Pt-SnSb has high electroactivity to eliminate the pollutant. Bulk electrolysis with this material, at 30 mA cm(-2), removed 97.5% and 70.3% of colour and COD. Two cell configurations led to higher removal rates depending on the cell-electrode position. Additionally, experiments combining Ti/Pt-SnSb and Nb/BDD materials were performed to clarify the effect of non-active anodes in the system. Assembling cells revealed to be an interesting pre-treatment to degrade organic compounds. The suitable system choice will be dependent on the final target COD value, the reaction time and the energy consumption. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：194 / 203

页数：10

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