Differentiating the reaction mechanism of three-dimensionally electrocatalytic system packed with different particle electrodes: Electro-oxidation versus electro-fenton

Xiao, Huiji; Hao, Yongjie; Wu, Jingli; Meng, Xianzhe; Fu, Feng; Xu, Fengqi; Luo, Siyi; Jiang, Bo

doi:10.1016/j.chemosphere.2023.138423

Cited by 23 publications

(1 citation statement)

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“…It has many advantages over traditional electrochemical oxidation reactors and has become the focus of interest of researchers since its inception. Recently, many studies have focused on preparing particle electrodes for 3D electrochemical oxidation [4,5].…”

Section: Introductionmentioning

confidence: 99%

Use Of Two-Dimensional And Three-Dimensional Reactors In Oxidative Electrochemical Degradation Studies Of Malachite Green

ŞAMDAN

2024

Sakarya University Journal of Science

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With the developments in treatment technologies, including porous materials in electrochemical systems have recently become the focus of researchers' attention. In electrochemical methods, operating cost is as important as efficiency. It is possible to increase the system performance by increasing the effective electrode surface by incorporating activated carbon, which can be produced from biomass, into electrochemical oxidation systems. This study investigated using activated carbon from walnut shells as a microelectrode in the electrochemical oxidative degradation of malachite green. When potential differences between 2V and 4V are applied to 2DES and 3DES reactors containing MG solution, a higher % MG Removal was obtained in 3DES reactors than in 2DES reactors. When the potential difference is 4V, a value of 0.026 (min-1) k1.3D and 0.0117 (min-1) k1.2D are obtained. In 3DES reactors, the rate constant at 0.003 A/cm2 was achieved as 0.0167 (min-1) k1.3D, while at 0.010 A/cm2, it increased by approximately 5 times, reaching a value of 0.0845 min-1 k1.3D. Similarly, in 3DES reactors, when the current density increased from 0.003 A/cm2 to 0.010 A/cm2, the mass transfer rate increased from 0.011 (cm/s) to 0.05633 (cm/s).

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Section: Introductionmentioning

confidence: 99%