Efficient removal of triphenylmethane dyes from aqueous medium by in situ electrogenerated Fenton’s reagent at carbon-felt cathode

On the ability to electrogenerate hydrogen peroxide and to regenerate ferrous ions of three selected carbon-based cathodes for electro-Fenton processes

“…Their better performance can be easily explained by considering that their structure enables to overcome the limitations related to oxygen solubility and transport. Similar encouraging results can be also achieved by adopting electrodes with enhanced reactive area and porosity as in the case of carbon felt (CF) [31][32][33] and reticulated vitreous carbon (RVC) [34][35][36]. The use of these materials is further promoted by their attractive properties, especially cheapness, possibility of construction in different shapes, lightness, thermal and chemical resistance [37].…”

Reaction sequence for the mineralization of the short-chain carboxylic acids usually formed upon cleavage of aromatics during electrochemical Fenton treatment

“…Thus, 2D electrodes such as graphite [8,9] or gas-diffusion [10][11][12][13][14][15][16][17][18][19][20] and 3D electrodes including carbon-felt [18,19,[21][22][23][24][25][26], carbon-sponge [27], RVC [28,29] or activated carbon fibre [30] have been used as cathode during the last decade, evidencing the outstanding performance of these electrochemical Fenton treatments to degrade a plethora of organic pollutants like herbicides and pesticides [10,12,24,29,31], dyes [9,15,23,[25][26][27]30], pharmaceutical drugs [11,13,14,[17][18][19]32,33] and other aromatics [16,[20][21][22...…”

Removal of the Azo Dye Congo Red from Aqueous Solutions by the Marine Alga Porphyra yezoensis Ueda

“…Various techniques have been employed for the removal of dyes from wastewaters. These methods principally include adsorption [2 -5], photocatalytic degradation [6], electrokinetic coagulation [7], advanced chemical oxidation [8,9], ozonation [10], liquid-liquid extraction [11] and biological processes [12,13].…”