کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6602796 | 1424081 | 2018 | 36 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mineralization of electronic wastewater by electro-Fenton with an enhanced graphene-based gas diffusion cathode
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In recent years, electro-Fenton (EF) has emerged as a promising solution for the mineralization of refractory organic compounds. Within the different electrodes used in EF, gas diffusion electrodes (GDEs) are among the most efficient in achieving high mineralization of pollutants. In this study, carbon cloth (treated with polytetrafluoroethylene) GDE (PTFE-CC-GDE) was coated for the first time with electrochemically exfoliated graphene in order to improve the generation of H2O2 and thus the mineralization of real industrial electronics wastewater by EF. Remarkably, the graphene-coated GDE allowed reaching H2O2 concentrations as high as 495â¯mgâ¯Lâ1 (specific H2O2 production of 28â¯mgâ¯cmâ2). As a result, over 80% of mineralization of electronics wastewater was achieved following 180â¯min of EF under the optimum operating conditions (29â¯mAâ¯cmâ2, 0.2â¯mM of Fe2+ and 0.2â¯Lâ¯minâ1 air flow). In conclusion, this study demonstrated the great capacity of the graphene-coated GDE for H2O2 production enhancement and its potential for the treatment of real industrial wastewater by EF.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 276, 20 June 2018, Pages 12-20
Journal: Electrochimica Acta - Volume 276, 20 June 2018, Pages 12-20
نویسندگان
Orlando Garcia-Rodriguez, Yi Yang Lee, Hugo Olvera-Vargas, Fengxia Deng, Zuxin Wang, Olivier Lefebvre,