Articles producció científica> Enginyeria Química

Catalytic wet peroxide oxidation of phenol using nanoscale zero-valent iron supported on activated carbon

  • Dades identificatives

    Identificador: imarina:6388505
    Autors:
    Messele SBengoa CStüber FFortuny AFabregat AFont J
    Resum:
    © 2015 Balaban Desalination Publications. All rights reserved. The main objective of the work is to prepare catalysts based on nanoscale zero-valent iron supported on activated carbon (nZVI/AC) and to test their activity for catalytic wet peroxide oxidation of phenol. The catalysts were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), ICP, and N2 adsorption–desorption, and their performance was evaluated in terms of phenol and TOC removal. The effect of the initial phenol concentration and initial pH on the oxidation process was investigated. Possible leaching of iron from the catalyst into the aqueous solution was also examined. The experimental results indicate that the catalytic activity toward phenol degradation was found to be enhanced by nZVI/AC catalysts compared to that of Fe/AC. In the range 150–1,000 mg/L, phenol conversion above 90% can be reached using these catalysts after only 15 min of the reaction, and using the stoichiometric hydrogen peroxide for complete mineralization. The leaching observed is less than 4% of the total initial iron in the catalyst even after 120 min of the reaction. It was also observed that the stability or reutilization of the catalyst was fairly good.
  • Altres:

    Autor segons l'article: Messele S; Bengoa C; Stüber F; Fortuny A; Fabregat A; Font J
    Departament: Enginyeria Química
    Autor/s de la URV: ASHAGRE MESSELE, SELAMAWIT / Bengoa, Christophe José / Fabregat Llangostera, Azael / Fabregat Sanjuan, Albert / Font Capafons, José / Fortuny Sanromà, Agustín / Stüber, Frank Erich
    Paraules clau: Activated carbon Catalytic wet peroxide oxidation Phenol Wastewater treatment Zero valent iron Zero-valent iron
    Resum: © 2015 Balaban Desalination Publications. All rights reserved. The main objective of the work is to prepare catalysts based on nanoscale zero-valent iron supported on activated carbon (nZVI/AC) and to test their activity for catalytic wet peroxide oxidation of phenol. The catalysts were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), ICP, and N2 adsorption–desorption, and their performance was evaluated in terms of phenol and TOC removal. The effect of the initial phenol concentration and initial pH on the oxidation process was investigated. Possible leaching of iron from the catalyst into the aqueous solution was also examined. The experimental results indicate that the catalytic activity toward phenol degradation was found to be enhanced by nZVI/AC catalysts compared to that of Fe/AC. In the range 150–1,000 mg/L, phenol conversion above 90% can be reached using these catalysts after only 15 min of the reaction, and using the stoichiometric hydrogen peroxide for complete mineralization. The leaching observed is less than 4% of the total initial iron in the catalyst even after 120 min of the reaction. It was also observed that the stability or reutilization of the catalyst was fairly good.
    Àrees temàtiques: Arquitetura, urbanismo e design Biotecnología Ciência de alimentos Ciências agrárias i Ciências ambientais Ciências biológicas i Ciências biológicas iii Engenharias i Engenharias ii Engenharias iii Engineering, chemical Farmacia Geociências Interdisciplinar Materiais Medicina ii Medicina veterinaria Ocean engineering Pollution Química Water resources Water science and technology
    Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
    Adreça de correu electrònic de l'autor: a.fabregat@urv.cat jose.font@urv.cat afabrega@urv.cat christophe.bengoa@urv.cat frankerich.stuber@urv.cat agustin.fortuny@urv.cat
    ISSN: 19443994
    Identificador de l'autor: 0000-0002-2878-1369 0000-0002-4007-7905 0000-0002-5525-5401 0000-0001-9160-5010 0000-0001-9424-1400
    Data d'alta del registre: 2024-09-14
    Versió de l'article dipositat: info:eu-repo/semantics/acceptedVersion
    Enllaç font original: https://www.tandfonline.com/doi/full/10.1080/19443994.2014.1002011
    Referència a l'article segons font original: Desalination And Water Treatment. 57 (11): 5155-5164
    Referència de l'ítem segons les normes APA: Messele S; Bengoa C; Stüber F; Fortuny A; Fabregat A; Font J (2016). Catalytic wet peroxide oxidation of phenol using nanoscale zero-valent iron supported on activated carbon. Desalination And Water Treatment, 57(11), 5155-5164. DOI: 10.1080/19443994.2014.1002011
    URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI de l'article: 10.1080/19443994.2014.1002011
    Entitat: Universitat Rovira i Virgili
    Any de publicació de la revista: 2016
    Tipus de publicació: Journal Publications
  • Paraules clau:

    Engineering, Chemical,Ocean Engineering,Pollution,Water Resources,Water Science and Technology
    Activated carbon
    Catalytic wet peroxide oxidation
    Phenol
    Wastewater treatment
    Zero valent iron
    Zero-valent iron
    Arquitetura, urbanismo e design
    Biotecnología
    Ciência de alimentos
    Ciências agrárias i
    Ciências ambientais
    Ciências biológicas i
    Ciências biológicas iii
    Engenharias i
    Engenharias ii
    Engenharias iii
    Engineering, chemical
    Farmacia
    Geociências
    Interdisciplinar
    Materiais
    Medicina ii
    Medicina veterinaria
    Ocean engineering
    Pollution
    Química
    Water resources
    Water science and technology
    19443994
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