Abstract
This study aimed to evaluate the efficiency of an electro-Fenton system, using a gas diffusion electrode (GDE) modified with reduced graphene oxide (rGO) for the electrogeneration of H2O2. The process was intensified using magnetic nanoparticles (Fe3O4) supported in graphene oxide (GO) as high-performance heterogeneous Fenton-like catalyst for degradation of textile wastewater. The GDE composed by carbon/PTFE produced 116.0 mg L−1 of H2O2. The modification of GDE with 5 % of rGO increased by about 83.0 % in the H2O2 generation (from 116.0–212.0 mg L−1). The catalyst modified with 15 % of GO presented in the high reduction of turbidity (98.5 %), COD (81.7 %) and TOC (70.3 %) and an excellent stability during ten cycles of reuse. The GO in addition to providing Fe3O4 stability also contributes to the generation of hydroxyl radicals (OH). The in situ H2O2 generation combined with a reusable catalyst made the process more efficient, economical and eco-friendly.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
