Adsorption of Eu(III) ions on silicas with noncovalently immobilized thiacalix[4]arene derivatives
- Authors: Lukashova M.S.1, Kharchenko S.G.2, Belikov K.N.1,3, Bryleva K.Y.1, Kal’chenko V.I.2, Shcherbakov I.B.1, Slyusarev A.N.1, Beda O.A.3
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Affiliations:
- Science and Technology Complex “Institute of Single Crystals”
- Institute of Organic Chemistry
- Faculty of Chemistry
- Issue: Vol 71, No 5 (2016)
- Pages: 476-481
- Section: Articles
- URL: https://journals.rcsi.science/1061-9348/article/view/181694
- DOI: https://doi.org/10.1134/S1061934816050063
- ID: 181694
Cite item
Abstract
Using the noncovalent immobilization of some thiacalix[4]arene derivatives on the surface of silanized silica, we obtained efficient adsorption materials for the extraction of Eu(III) ions from aqueous solutions of medium mineralization. The specific surface area of the adsorbents is 200–370 m2/g. It is shown that adsorbents containing thiacalix[4]arenes with phosphoryl groups selectively extract up to 99% of europium ions from aqueous solutions at pH 5.5–6; they are characterized by adsorption capacity of 7.5–14.5 mg/g and high distribution coefficients. The studied adsorbents exhibit high selectivity with respect to Eu(III) ions, wherein the distribution coefficients for Cs, Sr, Tb(III), Sm(III), Gd(III), La(III), and UO22+ are five times or more smaller.
Keywords
About the authors
M. S. Lukashova
Science and Technology Complex “Institute of Single Crystals”
Author for correspondence.
Email: lukashova@isc.kharkov.com
Ukraine, pr. Lenina 60, Kharkov, 61178
S. G. Kharchenko
Institute of Organic Chemistry
Email: lukashova@isc.kharkov.com
Ukraine, Murmanskaya ul. 5, Kyiv, 02660
K. N. Belikov
Science and Technology Complex “Institute of Single Crystals”; Faculty of Chemistry
Email: lukashova@isc.kharkov.com
Ukraine, pr. Lenina 60, Kharkov, 61178; Kharkiv, pl. Svobody 4, Kharkiv, 61000
K. Yu. Bryleva
Science and Technology Complex “Institute of Single Crystals”
Email: lukashova@isc.kharkov.com
Ukraine, pr. Lenina 60, Kharkov, 61178
V. I. Kal’chenko
Institute of Organic Chemistry
Email: lukashova@isc.kharkov.com
Ukraine, Murmanskaya ul. 5, Kyiv, 02660
I. B.-Kh. Shcherbakov
Science and Technology Complex “Institute of Single Crystals”
Email: lukashova@isc.kharkov.com
Ukraine, pr. Lenina 60, Kharkov, 61178
A. N. Slyusarev
Science and Technology Complex “Institute of Single Crystals”
Email: lukashova@isc.kharkov.com
Ukraine, pr. Lenina 60, Kharkov, 61178
O. A. Beda
Faculty of Chemistry
Email: lukashova@isc.kharkov.com
Ukraine, Kyiv, Vladimirskaya ul. 62, Kyiv, 01033