Selective Sorption of Cerium Ions from Uranium-Containing Solutions by Remotely Activated Ion Exchangers

Jumadilov, Т. K.; Utesheva, A.A.; Gražulevičius, Juozas V.; Imangazy, A. M.

doi:10.3390/polym15040816

Cited by 5 publications

(3 citation statements)

References 37 publications

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“…It directly depends on the ionization rate of the ion exchangers Lewatit CNP LF and AV-17-8 during their mutual interaction in the interpolymer system “Lewatit CNP LF@AV-17-8” (X:Y). The value θ was calculated according to Equation (1) [ 61 , 62 ]:

where ϑ sorbed is the amount of sorbed lutetium ions (in mol), and ϑ is is the amount (in mol) of the interpolymer system “Lewatit CNP LF@AV-17-8” (X:Y).…”

Section: Methodsmentioning

confidence: 99%

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Enhanced Lutetium Ion Sorption from Aqueous Solutions Using Activated Ion Exchangers

Jumadilov,

Khimersen,

Haponiuk

et al. 2024

Polymers

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The growing demand for rare earth elements (REE) requires the search for economically viable materials to efficiently recover REE from various solutions. Our research aims to investigate the potential of using a combination of the ion exchangers Lewatit CNP LF (in H+ form) and AV-17-8 (in OH− form) as an interpolymer system, “Lewatit CNP LF@AV-17-8” (X:Y), with varying mass ratios of X:Y to enhance the sorption efficiency of lutetium ions from nitrate solution. During the study, we used a range of analytical methodologies, including gravimetry, ultraviolet-visible (UV-VIS) spectroscopy, and inductively coupled plasma optical emission spectroscopy (ICP-OES). Our findings demonstrate that the interpolymer system “Lewatit CNP LF@AV-17-8” (X:Y), with a mass ratio of 4:2, exhibited a significantly enhanced sorption rate of Lu3+ ions (42%) compared to the individual Lewatit CNP LF (6:0) (25%) and the individual AV-17-8 (0:6) (21%) over a 48 h period. Moreover, this interpolymer system has demonstrated notable conformity to the Freundlich adsorption model, highlighting its performance as an effective sorbent for lutetium (III) ions. Notably, our study presents a novel utilization of the interpolymer system “Lewatit CNP LF@AV-17-8” (4:2), with an adsorption capacity of 221.05 mg/g, to enhance the recovery of lutetium ions. The research findings demonstrate its potential for enhancing the recovery of REE.

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where ϑ sorbed is the amount of sorbed lutetium ions (in mol), and ϑ is is the amount (in mol) of the interpolymer system “Lewatit CNP LF@AV-17-8” (X:Y).…”

Section: Methodsmentioning

confidence: 99%

“…It directly depends on the ionization rate of the ion exchangers Lewatit CNP LF and AV-17-8 during their mutual interaction in the interpolymer system "Lewatit CNP LF@AV-17-8" (X:Y). The value θ was calculated according to Equation (1) [61,62]:…”

Section: Determination Of the Polymer Chain Binding Propertiesmentioning

confidence: 99%

Enhanced Lutetium Ion Sorption from Aqueous Solutions Using Activated Ion Exchangers

Jumadilov,

Khimersen,

Haponiuk

et al. 2024

Polymers

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“…The increasing demand for its manufacturing has driven research into alternative sources of praseodymium [4,5]. Industrial aqueous waste could serve as an additional source for its production [6]. Currently, several methods for recovering metals from solutions have been developed, such as chemical precipitation [7], membrane filtration [8], and adsorption [9].…”

Section: Introductionmentioning

confidence: 99%

Improved Sorption of Praseodymium Ions From Nitrate Solutions by Activated Ion Exchangers

Jumadilov,

Myrzabay,

Ibragimova

2023

Chem. J. of Kaz.

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In this research, we investigated the praseodymium ions sorption by the ion exchangers KU-2-8 (H+form) and AV-17-8 (OH-form) as an interpolymer system called "KU-2-8:AV-17-8" (X:Y) with the molar ratio of ionic groups X:Y (6:0, 5:1, 4:2, 3:3, 2:4, 1:5, and 0:6) in praseodymium nitrate solution. To be clear, two cross-linked polymers having active functional groups that are in the same solution but not in direct contact form an interpolymer system. The purposeof our research to demonstrate how activating ion exchangers as functional polymers by remote contact in an aqueous medium enhances the sorption of a variety of valuable metals and their compounds from industrial waste solutions, including praseodymium. Objects.Ion exchangers that are mutually activated in an aqueous medium undergo conformational and electrochemical changes that lead to a shift in their state from neutral to highly ionized and an increase in their sorption activity toward target metal ions. Results.The experimental findings showed that the sorption activity of the interpolymer system KU-2-8:AV-17-8 (5:1) increased significantly when compared to praseodymium ions (43 %), but the sorption activity of the raw KU-2-8 (6:0) and raw AV-17-8 (0:6) had the same values of 25 % and 5 %, respectively. Conclusion. This research sheds light on a novel and promising approach to improve the efficiency of ion exchangers, opening possibilities for the effective recovery and removal of valuable metals from complex solutions. Additionally, it holds practical implications for sustainable waste management and resource recycling, contributing to the advancement of environmental protection and resource conservation in various industrial sectors. Further investigations and optimization of the interpolymer system could yield substantial benefits for greener and more resource-efficient future sorption technologies.

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Remote interaction effect of industrial ion exchangers on the electrochemical and sorption equilibrium in scandium sulfate solution

Jumadilov¹,

Imangazy

Khimersen

et al. 2023

Polym. Bull.

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Selective Sorption of Cerium Ions from Uranium-Containing Solutions by Remotely Activated Ion Exchangers

Cited by 5 publications

References 37 publications

Enhanced Lutetium Ion Sorption from Aqueous Solutions Using Activated Ion Exchangers

Enhanced Lutetium Ion Sorption from Aqueous Solutions Using Activated Ion Exchangers

Improved Sorption of Praseodymium Ions From Nitrate Solutions by Activated Ion Exchangers

Remote interaction effect of industrial ion exchangers on the electrochemical and sorption equilibrium in scandium sulfate solution

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