Equilibrium of the acid-activated system clinoptilolite tuff – ethanol solution of β-carotene
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.
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References
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purified natural clinoptilolite // Micropor. Mesopor. Materials. 2003. V. 61. P. 117-125.
2. Rivera A., Farias T. Clinoptilolite – surfactant composites as drugs support: A new
potential application // Micropor. Mesopor. Materials. 2005. V 80. P. 337-346.
3. Gonzalez- Pradas E., Villafranca- Sanchez M., Valverde- Garcia A. Adsorption of β
– carotene from acetone solution on natural and chemical modified bentonite // Materials
Chemestry and Physics. 1991. V 27. P. 307-319.
4. Sarier N, Guler C. β-carotene adsorption on acid-activated montmorillonite //
JAOCS. 1988. V.65. P 776-779.
5. Ahmad A.L., Chan C.Y., Mashitan M.D. Adsorption kinetics and thermodynamics of
β–carotene on silica – based adsorbent // Chem. Engeen. J. 2009. V. 148. № 2-3.
P. 378-384.
6. Kotova D.L., Vasilyeva S.Y., Krysanova T.A. et al. Isotherm of
α-Tocopherol Adsorption on Acid Activated Clinoptilolite Tuff // Colloid Journal. 2013.
V. 75. № 1. P. 84-87.
7. Kotova D.L., Do Thi Long, Krysanova T.A. et al. Kislotnay activaciy
clinoptilolitovogo tufa mestorochdeniy Pripolyrnogo Urala Ugru // Izv.Vyssh. Uchebn.
Zaved., Khim. Khim. Tekhnol. 2012, V. 55. №. 4. P. 100-104. [in Russian]
8. Dycheyko А.А. Vitamin A: Obmen u fynksii. Kiev. Nayka, 1989. 288 p. [in Russian]
9. Savinov B.G. Carotine (provitamin А) u poluchenie ego preparatov. Kiev. Nayka
1948. 231 p.
10.Muhammad, Khan M. A., Choong T. S. Y. et al. Kinetics studies for the adsorption
of β-carotene on mesoporous carbon coated monolith: effect of concentration and
temperature // Asian Journal of Chemistry. 2012. V. 24. No. 7. P. 3155-3161.
11. Kotova D.L., Vasilyeva, S.Yu., Krysanova T.A. Adsorbtsia α–tocopherola is
etanolnogo rastvora na kislotno-activirovannom clinoptilolitovom tufe // Sorbts.
Khromatogr. Protsessy. 2012. V. 12. № 6. P. 901–908. [in Russian].
12. Garcia-Basabe Y., Rodriguez-Iznaga I., de Menorval L.C. et al. Step-wise
dealumination of natural clinoptilolite: Structural and physicochemical characterization //
Microporous and Mesoporous Materials. 2010. V. 135. P.187-196.
13. Beyer H.K. Dealumination Techniques for Zeolites // Molecular Sieves - Science and
Technology. 2002. V. 3. P. 203-255.
14. Nakanisi K. Infrared spectroscopy and the structure of organic compounds. M.: Mir.
1987. [in Russian].
15. Kasicina L.A., Kypletskay N.B. Primenenie UF-, IK- and YMR-spectroskopii v
organ. himii. M.: Vyssh. chkola, 1971. 264 p. [in Russian].
16. Brunauer S., Emmett P., Teller E Adsorption of Gases in Multimolecular Layers // J.
Amer. Chem. Soc. 1938.V.60. P. 309.
17. Barrett E.P., Joyner L.G., Halenda P.P.J. The Determination of pore volume and area
distributions in porous substances. I. Computations from nitrogen isotherms // J. Am.
Chem. Soc. 1951. V. 73. P. 373.
18. Sprynskyy M., Golembiewski R., Trykowski G. Heterogeneity and hierarchy of
clinoptilolite porosity // J. of Physics and chemistry of solids. 2010. V. 71. P. 1269.
19. Gregg S.J., Sing K.S.W. Adsorption, Surface Area and Porosity, Academic Press,
1982. 304 p.
20. Nihal Sarier, Guler C. The mechanism of beta-carotene adsorption on activated
montmorillonite // JAOCS. V. 66. №. 7. 1989. P. 917-923.
21. Zhao X.S., Lu G.Q., Whittaker A.K. et al. Modification of MCM-41 by Surface
Silylation with Trimethylchlorosilane and Adsorption Study // J. Phys. Chem. B. 1998.
102. P. 1556.
22. Yang H., Zhang G., Hong X. et al Silytion of mesoporous silica MCM-41 with the
mixture of Cl(CH2)3SiCl3 and CH3SiCl3: combination of adjustable grafting density and
improved hydrothermal stability // Microporous and mesoporous materials. 2004. 68.
P. 119.
Published
2019-11-19
How to Cite
Kotova, D. L., Vasilyeva, S. Y., Davydova, E. G., Krysanova, T. A., & Borodina, E. V. (2019). Equilibrium of the acid-activated system clinoptilolite tuff – ethanol solution of β-carotene. Sorbtsionnye I Khromatograficheskie Protsessy, 14(2). Retrieved from https://journals.vsu.ru/sorpchrom/article/view/1474
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