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Synthesis, Characterization and Study of Phenol Adsorption Over MnOx- CeO2

Tipo de documento: Articulo

Resumen

Five MnOx-CeO2 samples with a molar ratio Mn-Ce between 0 and 100% were obtained by coprecipitation. The samples, which were called 10/0, 7/3, 5/5, 3/7, 0/10, were characterized by XRD, FTIR, XPS, specific surface area and TPR. Phenol was selected as pollutant. The adsorption of phenol from aqueous solution on Mn-Ce samples was investigated in a batch reactor at 25 and 50° C. The adsorption isotherms were described by Langmuir and Freundlich isotherm models and both model fitted. The characterization results showed the formation of solid solution where Mn3+ replaces Ce4+. The most active solid was Mn-Ce 7/3. The results showed that the adsorption process is a function of the Mn-Ce composition. Thermodynamics parameters ΔG0, ΔH0 and ΔS0 were calculated. These parameters indicated that the adsorption of phenol onto Mn-Ce was spontaneous and exothermic at 25 and 50 °C.

Información general

Fecha de publicación: 2014
Idioma del documento: Inglés
Revista: Current Catalysis; vol. 3
Institución de origen: Centro de Investigación y Desarrollo en Ciencias Aplicadas
ISSN: 2211-5455
Páginas: 166-171
Palabras claves: Adsorption ; Phenol ; MnOx-CeO2
Materias: Química

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Creado el: 11 de agosto de 2021
Disponible en SEDICI desde: 11 de agosto de 2021
Por favor, utilice uno de estos identificadores(URI) para citar o enlazar este ítem:
  • http://sedici.unlp.edu.ar/handle/10915/122482
  • https://doi.org/10.2174/2211544702666131224233506

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