Articles producció científica> Enginyeria Química

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

  • Dades identificatives

    Identificador: PC:1253
    Autors:
    Sunil AthalathilBostjan ErjavecRenata KaplanFrank StüberChristophe BengoaJosep FontAgusti FortunyAlbin PintarAzael Fabregat
    Resum:
    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.
  • Altres:

    Autor segons l'article: Sunil Athalathil Bostjan Erjavec Renata Kaplan Frank Stüber Christophe Bengoa Josep Font Agusti Fortuny Albin Pintar Azael Fabregat
    Departament: Enginyeria Química
    Autor/s 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
    Paraules clau: excess sludge Activated carbon Advanced oxidation processes (AOP)
    Resum: 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.
    Grup de recerca: Enginyeria de la Reacció Química i Intensificació de Processos
    Àrees temàtiques: Enginyeria química Ingeniería química Chemical engineering
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 0304-3894
    Identificador de l'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
    Data d'alta del registre: 2015-12-07
    Pàgina final: 414
    Volum de revista: 300
    Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
    Enllaç font original: https://www.sciencedirect.com/science/article/abs/pii/S0304389415005543?via%3Dihub
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI de l'article: 10.1016/j.jhazmat.2015.07.025
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2015
    Pàgina inicial: 406
    Tipus de publicació: Article Artículo Article
  • Paraules clau:

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

  • Cerca a google

    Search to google scholar