Features of Selective Sorption of Lanthanum from Solution, Which Contains Ions of Lanthanum and Cerium, by Intergel System Hydrogel of Polymethacrylic Acid: Hydrogel of Poly-2-Methyl-5-Vinylpyridine

Jumadilov, Т. K.; Kondaurov, R. G.

doi:10.1201/9780429286674-8

Cited by 3 publications

(4 citation statements)

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“…Our earlier studies [2][3][4][5][6][7][8][9][10][11][12] showed that almost all intergel systems based on acidic (polyacrylic and polymethacrylic acids) and basic (poly-4-vinylpyridine and poly-2-methyl-5-vinylpyridine) rare-crosslinked polymer hydrogels exhibit higher activity than their constituents. Moreover, it was found that the ratio of polymers, at which a high sorption of ions is manifested, differ significantly depending on the nature of acidic and basic hydrogels and the nature of rare earth metals.…”

Section: Resultsmentioning

confidence: 99%

“…Method for the determination of lanthanum ions. Method for the determination of ions lanthanum in solution is based on the formation of a colored complex compound of the organic analytical reagent Arsenazo III with rare earth metal ions (REM); the concentration of lanthanum ions was calculated on a KFK-3M spectrophotometer at 650 nm [4][5][6][7][8]. The degree of extraction (sorption) was calculated using the formula:…”

Section: Experimental Partmentioning

confidence: 99%

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Selectivity of Interpolymer Systems With Respect to Lanthanum Ions

et al. 2021

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The paper deals with the sorption of lanthanum ions by an interpolymer system consisting of sulfonic cation exchanger KU2-8 and anion exchanger AV-17-8. To predict the sorption activity of the intergel system, the mutual activation of the KU2-8 sulfonic cationite with the AV-17-8 anionite in the aqueous medium was initially studied. Due to the mutual activation of hydrogels in the course of their remote interaction, the polymer macromolecules pass into a highly ionized state, which leads to a significant increase in the degree of extraction of lanthanum ions from polymer hydrogels in intergel vapors as compared to the initial polymers. We calculated the degree of extraction of lanthanum ions by the interpolymer system KU2-8: AV-17-8, the degree of binding of the polymer chain (in relation to lanthanum ions) with the initial ion exchangers and the interpolymer system KU2-8: AV-17-8. Based on the data obtained, a comparative analysis of the sorption of lanthanum ions by individual sorbents and an interpolymer system was carried out within the limits of the ratio KU2-8: AV-17-8 = 5: 1–1: 5. It has been established that the maximum degree of sorption of lanthanum ions by the KU2-8: AV-17-8 interpolymer system is observed within the ratio KU2-8: AV-17-8 = 2: 4 at 48 hours of remote interaction of the interpolymer system and is 54.73 mol. %, at which the degree of binding of the polymer chain is 6.15%

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Section: Resultsmentioning

confidence: 99%

Section: Experimental Partmentioning

confidence: 99%

Selectivity of Interpolymer Systems With Respect to Lanthanum Ions

et al. 2021

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“…Материалы: Исследования проводили в среде дистиллированной воды. Гидрогели полиакриловой кислоты были синтезированы в присутствии сшивающего агента N,N-метилен-бисакриламида и окислительно-восcтановительной системы K2S2O8-Na2S2O3 при температуре 65-70 0 С [5][6].…”

Section: экспериментальная частьunclassified

Features of Remote Interaction of Polyacrylic Acid and Polyethylenimine Hydrogels

Jumadilov¹,

Totkhuskyzy²,

Yskak³

et al. 2021

Chem. J. of Kaz.

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The remote interaction between a weak polyacrylic acid polyelectrolyte (gpac) and a weak polyethyleneimine polybase (gpei) is studied as a function of time at their different molar ratios and states in an aqueous medium. To predict the possibility of activation of the studied hydrogels, electrochemical properties were studied by conductometry and pH metry. During pH measurement, it was found that 24 hours of pH have the lowest values, indicating a high content of H+ ions in the aqueous medium. The dependence of the specific electrical conductivity, the maximum value at the ratio of 3:3 (PAC:PEI) and it coincides with the result of pH from the ratio of components. The obtained results indicate that significant changes in the electrochemical and conformational values of the initial macromolecules in the interpolymer system occur in this interpolymer system. Thus, studies have shown on the presence of a remote interaction between hydrogels and their mutual activation. With an increase in the content of one of the hydrogels in the solution, a significant increase in the swelling of hydrogels is observed in proportion to the concentration of the second component, which indicates their mutual activation.

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“…A wide range of ion-exchange sorbents for the REE extraction is produced in large quantities annually. [4][5][6] However, the conducted experiments showed a significant number of these sorbents are not widely used due to the low efficiency, selectivity, and sorption activity.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Sorption Properties, and Evaluation of Silica Gel with Adsorbed Poly[8-Oxyquinoline Methacrylate] as a Sorbent for Cu(II), Cd(II), Pb(II) and Fe(III) Ions

Savchenko¹,

Yanovska²,

Sternik³

et al. 2023

ChChT

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In the present study, a novel functionalized silica composite was prepared by adsorption of poly[8 oxyquinoline methacrylate] on the surface of silica gel. Immobilization of poly[8 oxyquinoline methacrylate] on the silica gel surface was confirmed using IR spectroscopy and thermogravimetric analysis combined with mass spectrometry. Scanning electron microscopy revealed that the polymer almost completely covers the surface of the silica gel in the form of agglomerates of different geometric shapes. The processes of sorption of Cu(II), Cd(II), Pb(II), and Fe(III) ions on the surface of the synthesized composite in the static mode have been studied.

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Features of Selective Sorption of Lanthanum from Solution, Which Contains Ions of Lanthanum and Cerium, by Intergel System Hydrogel of Polymethacrylic Acid: Hydrogel of Poly-2-Methyl-5-Vinylpyridine

Cited by 3 publications

References 0 publications

Selectivity of Interpolymer Systems With Respect to Lanthanum Ions

Selectivity of Interpolymer Systems With Respect to Lanthanum Ions

Features of Remote Interaction of Polyacrylic Acid and Polyethylenimine Hydrogels

Synthesis, Sorption Properties, and Evaluation of Silica Gel with Adsorbed Poly[8-Oxyquinoline Methacrylate] as a Sorbent for Cu(II), Cd(II), Pb(II) and Fe(III) Ions

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