Equilibrium of the acid-activated system clinoptilolite tuff – ethanol solution of β-carotene

Authors

  • Diana L. Kotova Doctor of Science, professor of analytical chemistry department of chemical faculty, Voronezh State University, Voronezh
  • Svetlana Yu. Vasilyeva the post-graduate student of analytical chemistry department of chemical faculty, Voronezh State University, Voronezh
  • Ekaterina G. Davydova head of department of innovative and investment programs and projects, Voronezh State University of Architecture and Civil Engineering, Voronezh
  • Tatyana A. Krysanova lecturer of analytical chemistry department of chemical faculty, Voronezh State University, Voronezh
  • Elena V. Borodina postdoctoral fellows Debye Institute for Nanomaterials Science, Department of Inorganic Chemistry and Catalysis, Utrecht

Keywords:

β – carotene, clinoptilolite tuff, adsorption, isotherm.

Abstract

The equilibrium of the acid- activated system of clinoptilolite tuff - solution of ethanol of β -
carotene was studied in this work. The change in the mechanism of interaction of the system with increasing
concentration of provitamin A was evaluated based on the analysis of the isotherm. The adsorption of β-
carotene from dilute solutions was described by Langmuir model. Monolayer fixing of sorbate within the
structural matrix of the sorbent was determined by the formation of hydrogen bonds between provitamin A
and isolated silanol groups. Formation of polymolecular layers due to the association of β-carotene provided
by hydrophobic interactions. Nitrogen physisorption was utilized to observe changes in the surface area
properties, porosity of the zeolite after the adsorption of β-carotene.

Downloads

Download data is not yet available.

References

Downloads

Published

2019-11-19

Issue

Vol. 14 No. 2 (2014): Sorbtsionnye i Khromatograficheskie Protsessy

Section

Статьи

How to Cite

Equilibrium of the acid-activated system clinoptilolite tuff – ethanol solution of β-carotene. (2019). Sorbtsionnye I Khromatograficheskie Protsessy, 14(2). https://journals.vsu.ru/sorpchrom/article/view/1474

Most read articles by the same author(s)

1 2 > >>