کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6603587 | 1424088 | 2018 | 34 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Air diffusion electrodes based on synthetized mesoporous carbon for application in amoxicillin degradation by electro-Fenton and solar photo electro-Fenton
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The aim of this work was to develop an air diffusion mesoporous carbon electrode (ADE-MC) as cathode for the in-situ electrogeneration of hydrogen peroxide and its application on electro-Fenton (EF) and solar photo electro-Fenton (SPEF) processes. Three different mesoporous carbon materials were obtained by organic-organic self-assembly synthesis (soft-template route) by changing concentrations of resorcinol-formaldehyde polymer as carbon precursor and Pluronic F-127⢠surfactant as matrix-forming agent. The materials were characterized by X-ray diffraction (XRD), Raman spectroscopy, scanning electron microscopy (SEM), linear voltammetry (LV) and linear rotating disk electrode voltammetry (LV-RDE). MC materials showed pore diameter between 3.6 and 4.6â¯nm. The efficiency of ADE-MC was explored as a function of H2O2 produced at current densities (50, 100 and 150â¯mAâ¯cmâ2). The highest production of H2O2 was 10.85â¯mmolâ¯Lâ1â¯by applying 150â¯mAâ¯cmâ2. Finally, the ADE-MC were used for the mineralization of amoxicillin (50â¯mg Lâ1), allowing complete degradation and mineralization percentages of 55% and 85% with EF and SPEF processes, respectively. MC electrodes produce H2O2 in enough amounts that provide a viable option to degradation and mineralization of others organic pollutants in aqueous media by EF and SPEF processes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 269, 10 April 2018, Pages 232-240
Journal: Electrochimica Acta - Volume 269, 10 April 2018, Pages 232-240
نویسندگان
B. Garza-Campos, D. Morales-Acosta, A. Hernández-RamÃrez, J.L. Guzmán-Mar, L. Hinojosa-Reyes, J. ManrÃquez, E.J. Ruiz-Ruiz,