Decolourisation of dyes under electro-Fenton process using Fe alginate gel beads

Electricity-induced catalytic oxidation of RhB by O2 at a graphite anode

“…10. Conventional anodic oxidation treatments are usually performed in the absence of O 2 , which realize pollutant removal via direct oxidation or indirect oxidation mediated by reactive oxygen species (mainly the OH) generated from the electrolysis of H 2 O [7]. Quite different from above, in this work it is interesting to notice that the O 2 can effectively enhance RhB degradation at the graphite anode.…”

“…Specifically, the graphite and carbon felt anodes have been used in the undivided electro-Fenton cells [6][7][8][9]. However, the propensity of carbon to adsorb molecules from solution and the presence of surface oxides endow the carbon materials with high catalytic capacities to a large variety of electrochemical reactions [5].…”

Enhanced treatment of coking wastewater containing phenol, pyridine, and quinoline by integration of an E-Fenton process into biological treatment

“…As it is well known, the electro-Fenton (E-Fenton) process is one of the effective advanced oxidation technologies for the treatment of refractory pollutants in the in aquatic environment in which the hydrogen peroxide (H 2 O 2 ) is electrochemically produced through the oxygen reduction reaction on the cathode (Isarain-Chavez et al 2010, Rosales et al 2012Yu et al 2015;Cotillas et al 2015;Le et al 2016). This E-Fenton process is acknowledged to produce the hydroxyl radicals (·OH) owing to the interaction between electrochemically generated H 2 O 2 and additional Fe 2+ , which are extremely powerful and nonselective to degrade the refractory pollutants (Lei et al 2013).…”

In-situ fabrication of supported iron oxides from synthetic acid mine drainage: High catalytic activities and good stabilities towards electro-Fenton reaction

“…However, in most heterogeneous electroFenton systems the solid iron catalysts act as self-regulators of iron supply which release Fe 2+ to the bulk to react with electrogenerated H 2 O 2 [28][29][30][31]. These systems are virtually controlled by the homogeneous catalysis mechanism, and the activities of catalysts deteriorate with repeated use because of the leaching of Fe 2+ from the catalysts to aqueous phase.…”