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An electro-Fenton system with magnetite coated stainless steel mesh as cathode

Journal

CATALYSIS TODAY
Volume 359, Issue -, Pages 16-22

Publisher

ELSEVIER
DOI: 10.1016/j.cattod.2019.06.062

Keywords

Electro-Fenton; Magnetite; Stainless steel mesh; Methylene blue; Advanced oxidation process

Funding

  1. Basic Science Research Program through the National Research Foundation of Korea [NRF-2018R1A2B6006423]
  2. National Research Council of Science & Technology (NST) grant by the Korea government (MSIP) [CMP-16-04-KITECH]
  3. National Research Council of Science & Technology (NST), Republic of Korea [CMP-16-04-KITECH] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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An electro-Fenton system with magnetite coated stainless steel mesh as cathode was developed and tested for removing methylene blue in wastewater. By coating magnetite particles on the surface of the mesh, catalytic activation of in situ produced H2O2 was enhanced, leading to better degradation efficiency of methylene blue in neutral conditions compared to acidic conditions.
An electro-Fenton system with magnetite coated stainless steel (SUS) mesh as cathode was developed and tested for removing methylene blue in wastewater. For better adhesion between magnetite particles and SUS mesh surface, surface roughening of SUS mesh with FeAl particles was carried out. 850 degrees C was chosen as the optimized calcination temperature for FeAl treatment. When SUS meshes were coated with magnetite particles and applied as the cathode in an electro-Fenton system, catalytic activation of in situ produced H2O2 was enhanced. And this activation occurred heterogeneously on the surface of magnetite particles on cathode rather than homo-geneously with free roaming leached ferrous ions. By coating magnetite particles on SUS meshes, degradation efficiency of methylene blue in neutral conditions was better than that in acidic conditions with bare SUS meshes as cathode in our electro-Fenton system.

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