Title Impact of neodymium and scandium ionic radii on sorption dynamics of amberlite IR120 and AB-17-8 remote interaction /
Authors Jumadilov, Talkybek ; Totkhuskyzy, Bakytgul ; Malimbayeva, Zamira ; Kondaurov, Ruslan ; Imangazy, Aldan ; Khimersen, Khuangul ; Grazulevicius, Juozas
DOI 10.3390/ma14185402
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Is Part of Materials.. Basel : MDPI. 2021, vol. 14, iss. 18, art. no. 5402, p. 1-26.. ISSN 1996-1944
Keywords [eng] interpolymer system ; industrial ion-exchangers ; Amberlite IR120 ; AB-17-8 ; remote interaction ; mutual activation ; sorption ; neodymium ions ; scandium ions
Abstract [eng] The aim of the work is to provide a comparative study of influence of ionic radii of neodymium and scandium ions on their sorption process from corresponding sulfates by individual ion exchangers Amberlite IR120, AB-17-8 and interpolymer system Amberlite IR120-AB-17-8. Experiments were carried out by using the following physicochemical methods of analysis: conductometry, pH-metry, colorimetry, and atomic-emission spectroscopy. Ion exchangers in the interpolymer system undergo remote interactions with a further transition into highly ionized state. There is the formation of optimal conformation in the structure of the initial ion exchangers. A significant increase of ionization of the ion-exchange resins occurs at molar ratio of Amberlite IR120:AB-17-8 = 5:1. A significant increase of sorption properties is observed at this ratio due to the mutual activation of ion exchangers. The average growth of sorption properties in interpolymer system Amberlite IR120:AB-17-8 = 5:1 is over 90% comparatively to Amberlite IR120 and almost 170% comparatively to AB-17-8 for neodymium ions sorption; for scandium ions sorption the growth is over 65% comparatively to Amberlite IR120 and almost 90% comparatively to AB-17-8. A possible reason for higher sorption of neodymium ions in comparison with scandium ions is maximum conformity of globes of internode links of Amberlite IR120 and AB-17-8 after activation to sizes of neodymium sulfate in an aqueous medium.
Published Basel : MDPI
Type Journal article
Language English
Publication date 2021
CC license CC license description