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Abstract:

The biosorption of copper(II), zinc(II), cadmium(II) and lead(II) from aqueous solutions by dead Avena fatua biomass and the effect of these metals on the growth of this wild oat were investigated. Pseudo-first- and second-order and intra-particle diffusion models were applied to describe the kinetic data and to evaluate the rate constants. The adsorption kinetics of all the metals follows a pseudo-second-order model.The adsorption capacity was determined, and the Freundlich and Langmuir models were applied. The experimental data obtained for all the metals are best described by the Langmuir model. A. fatua was characterized using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and zeta potential. The results obtained evidence the presence of Zn(II), Cu(II), Cd(II) or Pb(II) on the surface of the weed.The growth of A. fatua was affected by the presence of all metals. The decrease in the growth rate with increasing metal concentration was more noticeable for zinc. © 2013 Elsevier B.V.

Registro:

Documento: Artículo
Título:Adsorption of Cu(II), Zn(II), Cd(II) and Pb(II) by dead Avena fatua biomass and the effect of these metals on their growth
Autor:Areco, M.M.; Saleh-Medina, L.; Trinelli, M.A.; Marco-Brown, J.L.; dos Santos Afonso, M.
Filiación:INQUIMAE, Departamento de Química Inorgánica Analítica y Química Fisica, Facultad de Ciencias Exactas y Naturales, Argentina
Universidad de Buenos Aires, Ciudad Universitaria Pabellón II 3er Piso, C1428EHA Buenos Aires, Argentina
Palabras clave:A. fatua; Biosorption; Growth; Heavy metals; Kinetics; A. fatua; Adsorption capacities; Adsorption kinetics; Energy dispersive x-ray spectroscopy; Experimental datum; Intra-particle diffusion; Metal concentrations; Pseudo second order; Biosorption; Cadmium; Ecology; Energy dispersive spectroscopy; Enzyme kinetics; Growth (materials); Growth kinetics; Heavy metals; Kinetics; Lead; Metals; Rate constants; Scanning electron microscopy; Zeta potential; Zinc; Zinc compounds; Copper; cadmium; cupric ion; lead; zinc ion; adsorption kinetics; article; Avena; Avena fatua; biomass production; concentration (parameters); controlled study; Freundlich model; growth rate; Langmuir model; mathematical computing; mathematical model; mathematical parameters; plant growth; priority journal; roentgen spectroscopy; scanning electron microscopy; surface property; weed; zeta potential; Adsorption; Avena sativa; Biomass; Cadmium; Copper; Lead; Surface Properties; Zinc; Avena fatua
Año:2013
Volumen:110
Página de inicio:305
Página de fin:312
DOI: http://dx.doi.org/10.1016/j.colsurfb.2013.04.035
Título revista:Colloids and Surfaces B: Biointerfaces
Título revista abreviado:Colloids Surf. B Biointerfaces
ISSN:09277765
CODEN:CSBBE
CAS:cadmium, 22537-48-0, 7440-43-9; lead, 13966-28-4, 7439-92-1; zinc ion, 23713-49-7; Cadmium, 00BH33GNGH; Copper, 789U1901C5; Lead, 2P299V784P; Zinc, J41CSQ7QDS
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_09277765_v110_n_p305_Areco

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Citas:

---------- APA ----------
Areco, M.M., Saleh-Medina, L., Trinelli, M.A., Marco-Brown, J.L. & dos Santos Afonso, M. (2013) . Adsorption of Cu(II), Zn(II), Cd(II) and Pb(II) by dead Avena fatua biomass and the effect of these metals on their growth. Colloids and Surfaces B: Biointerfaces, 110, 305-312.
http://dx.doi.org/10.1016/j.colsurfb.2013.04.035
---------- CHICAGO ----------
Areco, M.M., Saleh-Medina, L., Trinelli, M.A., Marco-Brown, J.L., dos Santos Afonso, M. "Adsorption of Cu(II), Zn(II), Cd(II) and Pb(II) by dead Avena fatua biomass and the effect of these metals on their growth" . Colloids and Surfaces B: Biointerfaces 110 (2013) : 305-312.
http://dx.doi.org/10.1016/j.colsurfb.2013.04.035
---------- MLA ----------
Areco, M.M., Saleh-Medina, L., Trinelli, M.A., Marco-Brown, J.L., dos Santos Afonso, M. "Adsorption of Cu(II), Zn(II), Cd(II) and Pb(II) by dead Avena fatua biomass and the effect of these metals on their growth" . Colloids and Surfaces B: Biointerfaces, vol. 110, 2013, pp. 305-312.
http://dx.doi.org/10.1016/j.colsurfb.2013.04.035
---------- VANCOUVER ----------
Areco, M.M., Saleh-Medina, L., Trinelli, M.A., Marco-Brown, J.L., dos Santos Afonso, M. Adsorption of Cu(II), Zn(II), Cd(II) and Pb(II) by dead Avena fatua biomass and the effect of these metals on their growth. Colloids Surf. B Biointerfaces. 2013;110:305-312.
http://dx.doi.org/10.1016/j.colsurfb.2013.04.035