Effect of air pressure on the electro-generation of H2O2 and the abatement of organic pollutants in water by electro-Fenton process

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Abstract

The electro-generation of H2O2 and the abatement of the model organic pollutant Acid Orange 7 (AO7) in water by an electro-Fenton process were perfomed under moderate air pressures (up to 11 bar) for the first time. An increase of the pressure gave rise to a drastic enhancement of the concentration of hydrogen peroxide. At 11 bar, the reduction of oxygen gave rise at a graphite cathode to a concentration of H2O2 of about 12 mM, about one order of magnitude higher than that achieved at atmospheric pressure, as a result of mass transport intensification. Similarly, for electro-Fenton, a drastic increase of the abatement of TOC was achieved upon increasing the air pressure. The effect of the current density was also investigated in detail.
Lingua originaleEnglish
pagine (da-a)775-780
Numero di pagine6
RivistaElectrochimica Acta
Stato di pubblicazionePublished - 2015

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Organic pollutants
Water
Air
Graphite
Hydrogen peroxide
Hydrogen Peroxide
Atmospheric pressure
Cathodes
Current density
Mass transfer
Oxygen
Acids

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Electrochemistry

Cita questo

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title = "Effect of air pressure on the electro-generation of H2O2 and the abatement of organic pollutants in water by electro-Fenton process",
abstract = "The electro-generation of H2O2 and the abatement of the model organic pollutant Acid Orange 7 (AO7) in water by an electro-Fenton process were perfomed under moderate air pressures (up to 11 bar) for the first time. An increase of the pressure gave rise to a drastic enhancement of the concentration of hydrogen peroxide. At 11 bar, the reduction of oxygen gave rise at a graphite cathode to a concentration of H2O2 of about 12 mM, about one order of magnitude higher than that achieved at atmospheric pressure, as a result of mass transport intensification. Similarly, for electro-Fenton, a drastic increase of the abatement of TOC was achieved upon increasing the air pressure. The effect of the current density was also investigated in detail.",
author = "Onofrio Scialdone and Simona Sabatino and Alessandro Galia and Benedetto Schiavo",
year = "2015",
language = "English",
pages = "775--780",
journal = "Electrochimica Acta",
issn = "0013-4686",
publisher = "Elsevier Limited",

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TY - JOUR

T1 - Effect of air pressure on the electro-generation of H2O2 and the abatement of organic pollutants in water by electro-Fenton process

AU - Scialdone, Onofrio

AU - Sabatino, Simona

AU - Galia, Alessandro

AU - Schiavo, Benedetto

PY - 2015

Y1 - 2015

N2 - The electro-generation of H2O2 and the abatement of the model organic pollutant Acid Orange 7 (AO7) in water by an electro-Fenton process were perfomed under moderate air pressures (up to 11 bar) for the first time. An increase of the pressure gave rise to a drastic enhancement of the concentration of hydrogen peroxide. At 11 bar, the reduction of oxygen gave rise at a graphite cathode to a concentration of H2O2 of about 12 mM, about one order of magnitude higher than that achieved at atmospheric pressure, as a result of mass transport intensification. Similarly, for electro-Fenton, a drastic increase of the abatement of TOC was achieved upon increasing the air pressure. The effect of the current density was also investigated in detail.

AB - The electro-generation of H2O2 and the abatement of the model organic pollutant Acid Orange 7 (AO7) in water by an electro-Fenton process were perfomed under moderate air pressures (up to 11 bar) for the first time. An increase of the pressure gave rise to a drastic enhancement of the concentration of hydrogen peroxide. At 11 bar, the reduction of oxygen gave rise at a graphite cathode to a concentration of H2O2 of about 12 mM, about one order of magnitude higher than that achieved at atmospheric pressure, as a result of mass transport intensification. Similarly, for electro-Fenton, a drastic increase of the abatement of TOC was achieved upon increasing the air pressure. The effect of the current density was also investigated in detail.

UR - http://hdl.handle.net/10447/150181

M3 - Article

SP - 775

EP - 780

JO - Electrochimica Acta

JF - Electrochimica Acta

SN - 0013-4686

ER -