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钕和钪离子半径对Amberlite IR120吸附动力学及AB - 17 - 8远程相互作用的影响

Impact of Neodymium and Scandium Ionic Radii on Sorption Dynamics of Amberlite IR120 and AB-17-8 Remote Interaction.

作者信息

Jumadilov Talkybek, Totkhuskyzy Bakytgul, Malimbayeva Zamira, Kondaurov Ruslan, Imangazy Aldan, Khimersen Khuangul, Grazulevicius Juozas

机构信息

Laboratory of Synthesis and Physicochemistry of Polymers, JSC Institute of Chemical Sciences after A.B. Bekturov, Sh. Valikhanov St. 106, Almaty 050010, Kazakhstan.

Department of Chemistry, Institute of Natural Science, Kazakh National Women's Teacher Training University, Aiteke Bi Str. 99, Almaty 050000, Kazakhstan.

出版信息

Materials (Basel). 2021 Sep 18;14(18):5402. doi: 10.3390/ma14185402.

DOI:10.3390/ma14185402
PMID:34576624
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8466485/
Abstract

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.

摘要

这项工作的目的是对钕离子和钪离子的离子半径对它们通过离子交换树脂Amberlite IR120、AB - 17 - 8以及互聚物体系Amberlite IR120 - AB - 17 - 8从相应硫酸盐中的吸附过程的影响进行比较研究。实验采用了以下物理化学分析方法：电导测定法、pH测定法、比色法和原子发射光谱法。互聚物体系中的离子交换树脂会发生远程相互作用，并进一步转变为高度电离状态。初始离子交换树脂的结构中会形成最佳构象。当Amberlite IR120与AB - 17 - 8的摩尔比为5:1时，离子交换树脂的电离显著增加。由于离子交换树脂的相互活化，在此比例下观察到吸附性能显著提高。对于钕离子吸附，互聚物体系Amberlite IR120:AB - 17 - 8 = 5:1的吸附性能平均增长相对于Amberlite IR120超过90%，相对于AB - 17 - 8几乎为170%；对于钪离子吸附，相对于Amberlite IR120增长超过65%，相对于AB - 17 - 8几乎为90%。与钪离子相比，钕离子吸附量更高的一个可能原因是活化后Amberlite IR120和AB -

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Nanomaterials (Basel). 2019 Nov 20;9(12):1648. doi: 10.3390/nano9121648.
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