Polymer–Zeolite Composites: Synthesis, Characterization and Application

IF 2.5 Q3 CHEMISTRY, PHYSICAL

Colloids and Interfaces Pub Date : 2024-01-09 DOI:10.3390/colloids8010008

G. Mamytbekov, Dmitry Anatol’evich Zheltov, Olga Sergeevna Milts, Yernat Rashidovich Nurtazin

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Abstract

Although the potential of natural minerals for purification of liquid radioactive wastes (LRW) from radionuclides has been widely studied, the use of hybrid polymer composites made of zeolite is still rather scarce. This article reports on the preparation of zeolite-based hybrid polymer composites using the in situ polymerization technique in the body of mineral matrix and its intercalated with copper ferrocyanide (CuFC) forms. This hybrid polymer composites have shown unique and enhanced properties for the removal of micropollutants from wasted water as compared to the individual mineral. The change in conventional properties of two mixed minerals, such as zeolite and bentonite, and their intercalated with CuFC forms were probed using techniques such as scanning electron microscopy (SEM), X-ray diffraction (XRD), Mössbauer spectroscopy (MS) and FT-IR analysis. The totality of analysis showed a coexistence of intercalated and percolated zeolite phases. The hybrid polymer composites exhibited both adsorption and ion-exchange properties in the removal of 134,137Cs+, 57,60Co2+ and 85Sr2+ radionuclides from LRW.

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聚合物-沸石复合材料：合成、表征与应用

尽管天然矿物在净化液态放射性废物（LRW）放射性核素方面的潜力已被广泛研究，但以沸石为原料的杂化聚合物复合材料的应用仍相当匮乏。本文报道了利用原位聚合技术在矿物基体中制备沸石基杂化聚合物复合材料及其与亚铁氰化铜（CuFC）的插层形式。与单个矿物质相比，这种杂化聚合物复合材料在去除废水中的微污染物方面表现出了独特且更强的性能。使用扫描电子显微镜（SEM）、X 射线衍射（XRD）、莫斯鲍尔光谱（MS）和傅立叶变换红外分析等技术，对两种混合矿物（如沸石和膨润土）及其与 CuFC 的插层形式的传统特性变化进行了探测。全部分析结果表明，夹层沸石和渗滤沸石相共存。杂化聚合物复合材料在去除轻质放射性废物中的 134、137Cs+、57、60Co2+ 和 85Sr2+ 放射性核素时表现出吸附和离子交换特性。

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

Colloids and Interfaces CHEMISTRY, PHYSICAL-

CiteScore

3.90

自引率

4.20%

发文量

审稿时长

10 weeks