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Study on the uranium adsorption and reusability characteristics of amidoximated polypropylene-acrylonitrile-acrylic acid fibrous adsorbent

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Abstract

The kinetics and thermodynamics of the U(VI) adsorption process on amidoximated polypropylene-acrylonitrile-acrylic acid (AOPP-AN-AAc) fiber adsorbent were investigated by static adsorption at different temperatures. The process of uranium adsorption by the adsorbent was fitted to the pseudo-second-order kinetic model and the pseudo-second-order rate constant and the pseudo activation energy at different temperatures were determined. The thermodynamic properties of the U(VI) adsorption process by the adsorbent were also evaluated. The optimum conditions of adsorption were determined by studying the effects of U(VI) concentration, solution pH, temperature and stirring conditions on the adsorption equilibrium. The desorption and regeneration properties of U(VI) adsorbed on the adsorbent were evaluated in different media.

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Authors and Affiliations

  1. Energy Science College of Kim Il Sung University, Pyongyang, Democratic People’s Republic of Korea

    Jong-Gil Im, Ho-Song Pak, Un-Chol Jon, Song-Bom Ri, Sun-Yong Om & Chol-Jin Jong

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  1. Jong-Gil Im
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  2. Ho-Song Pak
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Correspondence to Ho-Song Pak.

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Im, JG., Pak, HS., Jon, UC. et al. Study on the uranium adsorption and reusability characteristics of amidoximated polypropylene-acrylonitrile-acrylic acid fibrous adsorbent. J Radioanal Nucl Chem 332, 3911–3918 (2023). https://doi.org/10.1007/s10967-023-09118-6

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  • DOI: https://doi.org/10.1007/s10967-023-09118-6

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