Artículos de revistas
Equilibrium Modeling Of Ion Adsorption Based On Poisson-boltzmann Equation
Registro en:
Equilibrium Modeling Of Ion Adsorption Based On Poisson-boltzmann Equation. Elsevier Science Bv, v. 468, p. 159-166 Mar-2015.
0927-7757
WOS:000349446500019
10.1016/j.colsurfa.2014.11.065
Autor
Steffen
V.; Cardozo-Filho
L.; Silva
E. A.; Evangelista
L. R.; Guirardello
R.; Mafre
M. R.
Institución
Resumen
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) A phenomenological model representing ion adsorption equilibrium is proposed. It is an extension of the model used to represent surface adsorption, and it is intended to interpret bulk adsorption data. The fundamental equations of the model were established for fluid and solid phases mass balance and for the spatial distribution of ions across the sample. The electric field distribution in the system, modeled on Poisson's equation, and the chemical potential behavior were determined as a function of fluid phase equilibrium concentration. The concentration of ions as a function of electric potential is given by Boltzmann distribution. The proposed model was successfully tested to represent equilibrium adsorption of metallic ions in zeolite, showing results similar to conventional isotherms. (C) 2014 Elsevier B.V. All rights reserved. 468
159 166 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)