An enhancement of electro-Fenton treatment, performed by employing a PTFE-bonded gas diffusion cathode, is presented. The effect of different commercial carbon cloths on hydrogen peroxide production, iron regeneration and overall oxidation of an inorganic solution was investigated in electrolyses conducted under potentiostatic conditions. The influence of some operative conditions such as working potential, pH and feeding gas, is also reported. The results show that the hydrophilic nature of the coating highly improved the production of hydrogen peroxide, while iron regeneration is unaffected by the carbon characteristics only benefiting by less negative cathode potential and lower pH. Oxidation yields are confirmed to strictly depend on the concentration ratio of all the species involved. In particular, to limit the occurrence of undesired side reactions, excess of hydrogen peroxide has to be avoided.

Effect of carbon material on the performance of a gas diffusion electrode in electro-fenton process / Petrucci, Elisabetta; Montanaro, Daniele; LE DONNE, S.. - In: ZHONGHUA HUANJING GONGCHENG XUEKAN. - ISSN 1022-7636. - 19(5):(2009), pp. 299-305.

Effect of carbon material on the performance of a gas diffusion electrode in electro-fenton process

PETRUCCI, Elisabetta;MONTANARO, DANIELE;
2009

Abstract

An enhancement of electro-Fenton treatment, performed by employing a PTFE-bonded gas diffusion cathode, is presented. The effect of different commercial carbon cloths on hydrogen peroxide production, iron regeneration and overall oxidation of an inorganic solution was investigated in electrolyses conducted under potentiostatic conditions. The influence of some operative conditions such as working potential, pH and feeding gas, is also reported. The results show that the hydrophilic nature of the coating highly improved the production of hydrogen peroxide, while iron regeneration is unaffected by the carbon characteristics only benefiting by less negative cathode potential and lower pH. Oxidation yields are confirmed to strictly depend on the concentration ratio of all the species involved. In particular, to limit the occurrence of undesired side reactions, excess of hydrogen peroxide has to be avoided.
2009
Gas diffusion electrode; electrode material; hydrogen peroxide production; iron regeneration; electro-Fenton
01 Pubblicazione su rivista::01a Articolo in rivista
Effect of carbon material on the performance of a gas diffusion electrode in electro-fenton process / Petrucci, Elisabetta; Montanaro, Daniele; LE DONNE, S.. - In: ZHONGHUA HUANJING GONGCHENG XUEKAN. - ISSN 1022-7636. - 19(5):(2009), pp. 299-305.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/360106
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