ESTUDIO CINÉTICO Y TERMODINÁMICO DE LA ADSORCIÓN DE IONES Cu (II) EN UN ADSORBENTE DE BASE SILÍCICA

Authors

  • Dr. Julio O. Prieto-García Facultad de Quimica y Farmacia. Universidad Central "Marta Abreu" de Las Villas
  • Dr. Rafael Quintana-Pucho Facultad de Quimica y Farmacia. Universidad Central "Marta Abreu" de Las Villas
  • Lic. Anisley Santana-Rodríguez Facultad de Quimica y Farmacia. Universidad Central "Marta Abreu" de Las Villas
  • Lic. Yoslainy Echevarría-Bermúdez Facultad de Quimica y Farmacia. Universidad Central "Marta Abreu" de Las Villas
  • Lic. Manuel Treto-Suarez Facultad de Quimica y Farmacia. Universidad Central "Marta Abreu" de Las Villas
  • Ángel Mollineda-Trujillo Facultad de Quimica y Farmacia. Universidad Central "Marta Abreu" de Las Villas

Abstract

In this research is carried out the synthesis of the amorphous silicon dioxide, it is characterized using
analytical techniques ( XRD, TDA and FTIS) . It is used to carry out a study of adsorption of the ion Cu2+ (in water media) in models dissolutions. According to the coefficients of correlation bilinear, the ions showed a tendency to be adjusted the model of pseudo- second order (kinetic) with second order rate constant of 2,87 ·10-3 g/mg min. The Langmuir isotherm was found to best represent the data for copper (II) adsorption on the amorphous silicon dioxide. The limiting amounts of copper (II) adsorbed by the solid correspond to a monolayer was 10,5 mg/g and equilibrium constant of 0,02 mg/L.
Keywords: synthesis, silicon dioxide, adsorption, copper (II).

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Published

2015-11-04

How to Cite

Prieto-García, D. J. O., Quintana-Pucho, D. R., Santana-Rodríguez, L. A., Echevarría-Bermúdez, L. Y., Treto-Suarez, L. M., & Mollineda-Trujillo, Ángel. (2015). ESTUDIO CINÉTICO Y TERMODINÁMICO DE LA ADSORCIÓN DE IONES Cu (II) EN UN ADSORBENTE DE BASE SILÍCICA. Revista Cubana De Química, 24(1), 40–47. Retrieved from https://cubanaquimica.uo.edu.cu/index.php/cq/article/view/297

Issue

Vol. 24 No. 1 (2012)

Section

Artículos

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