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首页> 外文期刊>International Journal of Electrochemical Science >Comparative Electrochemical Degradation of the Acid Yellow 49 Dye Using Boron-Doped Diamond, β-PbO2, and DSA? Anodes in a Flow Reactor
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Comparative Electrochemical Degradation of the Acid Yellow 49 Dye Using Boron-Doped Diamond, β-PbO2, and DSA? Anodes in a Flow Reactor

机译：掺硼金刚石，β-PbO 2 和DSA？电化学比较酸性黄49染料的性能流反应器中的阳极

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摘要

The electrodegradation of the Acid Yellow 49 dye (100 mg L in 0.1 mol L Na2SO4) was investigated using boron-doped diamond (BDD), Ti-Pt/-PbO2, and Ti/RuO2-TiO2 (DSA ) anodes. Galvanostatic electrolyses (5, 15 or 30 mA cm ) were carried out in an electrochemical flow system,with a filter-press reactor. Best performances were attained with the BDD anode and worst with the DSA anode. The dye solution was adequately decolorized using an electrical charge per unit volume of dye solution (Qapl) slightly higher than 0.60 A h L , applied with the BDD anode at a current density of only 5 mA cm . At this current density, COD and TOC abatements of 37% and 20% were attained with Qapl values of only 0.60 and 1.20 A h L , respectively; this indicates the feasibility ofabating the organic load of the dye solution by simply increasing the value of Qapl.
机译：使用掺硼金刚石（BDD），Ti-Pt / -PbO2和Ti / RuO2-TiO2（DSA）阳极研究了酸性黄49染料（在0.1 mol L Na2SO4中的100 mg L）的电沉积。电化学恒流电解（5、15或30 mA cm）是在带有压滤反应器的电化学流动系统中进行的。使用BDD阳极可获得最佳性能，而使用DSA阳极可获得最差的性能。使用略高于0.60 A h L的每单位体积染料溶液（Qapl）的电荷对染料溶液进行充分脱色，该电荷以仅5 mA cm的电流密度与BDD阳极一起施加。在此电流密度下，Qapl值分别仅为0.60和1.20 A h L时，COD和TOC减少量分别达到37％和20％。这表明通过简单地增加Qapl的值来减轻染料溶液有机负荷的可行性。

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