Microporous activation carbon made of sawdust from two forestry species for adsorption of methylene blue and heavy metals in aqueous system -case of real pollutedwater

Título traducido de la contribución: Carbón activado microporoso producido de aserrín de dos especies forestales para la adsorción de azul de metileno y metales pesados en medio acuoso -caso agua de río contaminada

J. F. Cruz, G. J.F. Cruz, K. Ainassaari, M. M. Gómez, J. L. Solís, R. L. Keiski

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

9 Citas (Scopus)

Resumen

Activated carbon samples were prepared and characterized from two novel forestry precursors by one-step chemical activation with ZnCl2. The adsorption capacities of the adsorbents were tested with methylene blue in monocomponent synthetic solution and with heavy metals from polluted river water. The specific surface areas (SBET) of the produced activated carbons were 1278 and 1404 m2/g. Further characterization was carried out by FTIR, RAMAN spectroscopy, XRD and FESEM analysis. The pore structure of both activated carbons was predominantly microporous with presence of mesopores. The maximum methylene blue (MB) adsorption capacities for both activated carbons were 250 mg/g and 357 mg/g. MB kinetic experiments were carried out and the influence of the initial MB concentration and the activated carbon dosage was evaluated. The samples reached removal levels close to 100% during the first 5 min of experiments with dissolved As(V) and Pb(II) in the polluted river water, reducing the concentration of these elements until levels below the local water quality standards.

Título traducido de la contribuciónCarbón activado microporoso producido de aserrín de dos especies forestales para la adsorción de azul de metileno y metales pesados en medio acuoso -caso agua de río contaminada
Idioma originalInglés
Páginas (desde-hasta)847-861
Número de páginas15
PublicaciónRevista Mexicana de Ingeniera Quimica
Volumen17
N.º3
DOI
EstadoPublicada - 1 set. 2018

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