Layered Double Hydroxides as Promising Adsorbents for Purification of Radioactive Polluted Water: A Review

IF 0.7 4区 化学 Q4 CHEMISTRY, MULTIDISCIPLINARY
N. G. Kobylinska, L. M. Puzyrnaya, G. M. Pshinko
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引用次数: 2

Abstract

A critical review of the last decade’s literature on the synthesis, modification, and properties of layered double hydroxides (LDHs) regarding their use as sorbents for the removal of radionuclides from aquatic environments has been conducted. The evaluation of their adsorption capacity against U(VI), 137Cs, 90Sr, 60Co, 152+154Eu(III), and 241Am has been performed on the basis of the analysis of the effect of the LDH preparation method, the nature of the metal ions in the material layers and compounds intercalated into their interlayer space. It is shown that magnetic composites of LDHs chelated forms have significant advantages for a practical use for the removal of both cationic and, especially, anionic forms of uranium(VI) from aquatic environments. Zn,Al-LDHs intercalated with the inorganic compounds, namely hexacyanoferrate(II) anions and copper(II) hexacyanoferrate, are found to be the most effective for the sorption extraction of 137Cs and 90Sr radionuclides.

Abstract Image

层状双氢氧化物在放射性污水净化中的应用研究进展
对近十年来关于层状双氢氧化物(LDHs)的合成、改性和性能的文献进行了综述,并将其作为吸附剂用于去除水生环境中的放射性核素。在分析LDH制备方法、材料层内金属离子性质及其层间空间插入化合物的影响的基础上,对LDH对U(VI)、137Cs、90Sr、60Co、152+154Eu(III)和241Am的吸附能力进行了评价。研究表明,LDHs螯合形式的磁性复合材料在去除水中环境中阳离子和特别是阴离子形式的铀(VI)方面具有显著的实际应用优势。Zn、Al-LDHs插接无机化合物(即六氰铁酸盐(II)阴离子和铜(II)六氰铁酸盐)对137Cs和90Sr放射性核素的吸附萃取效果最好。
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来源期刊
Theoretical and Experimental Chemistry
Theoretical and Experimental Chemistry CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
1.60
自引率
10.00%
发文量
30
审稿时长
6-12 weeks
期刊介绍: Theoretical and Experimental Chemistry is a journal for the rapid publication of research communications and reviews on modern problems of physical chemistry such as: a) physicochemical bases, principles, and methods for creation of novel processes, compounds, and materials; b) physicochemical principles of chemical process control, influence of external physical forces on chemical reactions; c) physical nanochemistry, nanostructures and nanomaterials, functional nanomaterials, size-dependent properties of materials.
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