Departamento de Ingeniería Geomática e Hidráulica, Universidad de Guanajuato, Av. Juárez 77, Zona Centro, C.P. 36000, Guanajuato, Guanajuato, Mexico,
Environ Sci Pollut Res Int. 2014;21(14):8485-92. doi: 10.1007/s11356-014-2781-3. Epub 2014 Apr 16.
This paper compares the performance of 2D (plate) and 3D (mesh) boron-doped diamond (BDD) electrodes, fitted into a filter-press reactor, during the electrochemical incineration of indigo textile dye as a model organic compound in chloride medium. The electrolyses were carried out in the FM01-LC reactor at mean fluid velocities between 0.9 ≤ u ≤ 10.4 and 1.2 ≤ u ≤ 13.9 cm s(-1) for the 2D BDD and the 3D BDD electrodes, respectively, at current densities of 5.63 and 15 mA cm(-2). The oxidation of the organic matter was promoted, on the one hand, via the physisorbed hydroxyl radicals (BDD(·OH)) formed from water oxidation at the BDD surface and, on the other hand, via active chlorine formed from the oxidation of chloride ions on BDD. The performance of 2D BDD and 3D BDD electrodes in terms of current efficiency, energy consumption, and charge passage during the treatments is discussed.
本文比较了二维（板状）和三维（网状）掺硼金刚石（BDD）电极在过滤压力反应器中的性能，在氯化物介质中电化学焚烧靛蓝纺织染料作为模型有机化合物。在 FM01-LC 反应器中进行了电解，二维 BDD 和三维 BDD 电极的平均流体速度分别为 0.9≤u≤10.4 和 1.2≤u≤13.9 cm s(-1)，电流密度分别为 5.63 和 15 mA cm(-2)。一方面，通过 BDD 表面上水氧化形成的物理吸附羟基自由基（BDD(·OH)），另一方面通过 BDD 上氯氧化形成的活性氯促进了有机物的氧化。讨论了二维 BDD 和三维 BDD 电极在处理过程中的电流效率、能耗和电荷传递性能。
