Articles producció científica> Enginyeria Química

TiO2-Sludge carbon enhanced catalytic oxidative reaction in environmental wastewaters applications

  • Datos identificativos

    Identificador: PC:1253
    Autores:
    Sunil AthalathilBostjan ErjavecRenata KaplanFrank StüberChristophe BengoaJosep FontAgusti FortunyAlbin PintarAzael Fabregat
    Resumen:
    The enhanced oxidative potential of sludge carbon/TiO2 nano composites (SNCs), applied as heterogeneous catalysts in advanced oxidation processes (AOPs), was studied. Fabrification of efficient SNCs using different methods and successful evaluation of their catalytic oxidative activity is reported for the first time. Surface modification processes of hydrothermal deposition, chemical treatment and sol-gel solution resulted in improved catalytic activity and good surface chemistry of the SNCs. The solids obtained after chemical treatment and hydrothermal deposition processes exhibit excellent crystallinity and photocatalytic activity. The highest photocatalytic rate was obtained for the material prepared using hydrothermal deposition technique, compared to other nanocomposites. Further, improved removal of bisphenol A (BPA) from aqueous phase by means of catalytic ozonation and catalytic wet air oxidation processes is achieved over the solid synthesized using chemical treatment method. The present results demonstrate that the addition of TiO2 on the surface of sludge carbon (SC) increases catalytic oxidative activity of SNCs. The latter produced from harmful sludge materials can be therefore used as cost-effective and efficient sludge derived catalysts for the removal of hazardous pollutants.
  • Otros:

    Autor según el artículo: Sunil Athalathil Bostjan Erjavec Renata Kaplan Frank Stüber Christophe Bengoa Josep Font Agusti Fortuny Albin Pintar Azael Fabregat
    Departamento: Enginyeria Química
    Autor/es de la URV: FABREGAT LLANGOSTERA, AZAEL Albin Pintar FORTUNY SANROMÀ, AGUSTÍ FONT CAPAFONS, JOSÉ BENGOA, CHRISTOPHE JOSÉ STÜBER, FRANK ERICH Renata Kaplan Bostjan Erjavec ATHALATHIL RAMANKUTTY, SUNIL
    Palabras clave: excess sludge Activated carbon Advanced oxidation processes (AOP)
    Resumen: The enhanced oxidative potential of sludge carbon/TiO2 nano composites (SNCs), applied as heterogeneous catalysts in advanced oxidation processes (AOPs), was studied. Fabrification of efficient SNCs using different methods and successful evaluation of their catalytic oxidative activity is reported for the first time. Surface modification processes of hydrothermal deposition, chemical treatment and sol-gel solution resulted in improved catalytic activity and good surface chemistry of the SNCs. The solids obtained after chemical treatment and hydrothermal deposition processes exhibit excellent crystallinity and photocatalytic activity. The highest photocatalytic rate was obtained for the material prepared using hydrothermal deposition technique, compared to other nanocomposites. Further, improved removal of bisphenol A (BPA) from aqueous phase by means of catalytic ozonation and catalytic wet air oxidation processes is achieved over the solid synthesized using chemical treatment method. The present results demonstrate that the addition of TiO2 on the surface of sludge carbon (SC) increases catalytic oxidative activity of SNCs. The latter produced from harmful sludge materials can be therefore used as cost-effective and efficient sludge derived catalysts for the removal of hazardous pollutants.
    Grupo de investigación: Enginyeria de la Reacció Química i Intensificació de Processos
    Áreas temáticas: Enginyeria química Ingeniería química Chemical engineering
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 0304-3894
    Identificador del autor: n/a 0000-0001-6223-111X n/a 0000-0001-9424-1400 0000-0001-9160-5010 0000-0002-4007-7905 0000-0002-2350-8654 n/a 0000-0002-5525-5401
    Fecha de alta del registro: 2015-12-07
    Página final: 414
    Volumen de revista: 300
    Versión del articulo depositado: info:eu-repo/semantics/acceptedVersion
    Enlace a la fuente original: https://www.sciencedirect.com/science/article/abs/pii/S0304389415005543?via%3Dihub
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI del artículo: 10.1016/j.jhazmat.2015.07.025
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2015
    Página inicial: 406
    Tipo de publicación: Article Artículo Article
  • Palabras clave:

    Carbó activat
    Aigües residuals -- Depuració
    excess sludge
    Activated carbon
    Advanced oxidation processes (AOP)
    Enginyeria química
    Ingeniería química
    Chemical engineering
    0304-3894
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