Inorganic composites based on carboxymethyl cellulose: preparation, characterization, sorption, and selectivity behavior for some radionuclides from radioactive solutions

IF 1.4 3区 化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR
Mohamed Ragab Abass, Maha Ali Youssef, Marwa Ahmed Eid
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Abstract

This work is interested in the sorption and separation of 131Ba, 109Cd, 152+154Eu, and 97Zr from radioactive solutions onto barium molybdenum titanate loaded on carboxy methyl cellulose (BaMoTi@CMC) composites. In this work, different samples of BaMoTi@CMC composites were fabricated by the co-precipitation method and characterized using different analytical tools such as X-ray diffraction (XRD), attenuated total reflectance (ATR), and scanning electron microscope (SEM). The batch sorption investigations on 131Ba, 109Cd, 152+154Eu, and 97Zr include the influence of time, pH, and metal ion concentrations. The data reveal that S-3 has higher sorption efficiency than S-2 under all conditions. Isotherm is studied by Langmuir and Freundlich models. Binary systems data confirm that Cd(ii), Ba(ii), and Zr(iv) can be separated from Cd–Eu, Ba–Eu, and Zr–Eu binary systems using S-2 and S-3 at different pHs. Finally, the data prove that Zr(iv) and Ba(ii) can be easily separated from tertiary systems (Zr–Ba–Cd) onto S-2 and S-3 at pH 2.
基于羧甲基纤维素的无机复合材料:制备、表征、对放射性溶液中某些放射性核素的吸附和选择性行为
本研究对放射性溶液中131Ba、109Cd、152+154Eu和97Zr的吸附和分离进行了研究,并将其吸附到负载于羧甲基纤维素(BaMoTi@CMC)复合材料上。本文采用共沉淀法制备了不同的BaMoTi@CMC复合材料样品,并使用不同的分析工具,如x射线衍射(XRD)、衰减全反射(ATR)和扫描电子显微镜(SEM)对其进行了表征。对131Ba、109Cd、152+154Eu和97Zr的批量吸附研究包括时间、pH和金属离子浓度的影响。数据表明,在所有条件下S-3的吸附效率都高于S-2。等温线由Langmuir和Freundlich模型研究。双星系统的数据证实,Cd(ii)、Ba(ii)和Zr(iv)可以用不同ph值的S-2和S-3从Cd - eu、Ba - eu和Zr - eu双星系统中分离出来。最后,数据证明Zr(iv)和Ba(ii)在pH为2的条件下可以很容易地从三级体系(Zr - Ba - cd)中分离到S-2和S-3上。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Radiochimica Acta
Radiochimica Acta 化学-核科学技术
CiteScore
2.90
自引率
16.70%
发文量
78
审稿时长
6 months
期刊介绍: Radiochimica Acta publishes manuscripts encompassing chemical aspects of nuclear science and technology.
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