화학공학소재연구정보센터
Separation and Purification Technology, Vol.179, 194-203, 2017
Electrochemical abatement of amaranth dye solutions using individual or an assembling of flow cells with Ti/Pt and Ti/Pt-SnSb anodes
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.