多孔聚偕胺肟接枝壳聚糖/氧化石墨烯水凝胶珠用于海水中高效提铀

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-09-21 DOI:10.1007/s10967-024-09780-4

Tingting Cai, Renchan Lei, Qi Wang, Zhuo Wang, Bing Han

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引用次数: 0

摘要

核工业迫切需要具有有效海水提铀性能的独立式材料。本文采用聚偕胺肟接枝壳聚糖（PAO-CS）和氧化石墨烯（GO）复合材料制备了多孔水凝胶珠。PAO-CS/GO微球具有高亲和偕胺肟基团、稳定的互联多孔骨架和优异的亲水性等优点。优化后的结构和性能使PAO-CS/GO微珠具有较高的吸附量（467.07 mg g−1）、良好的离子选择性和可回收性，在不同浓度（8、16和32 ppm）的模拟海水中萃取效率达到97%。本研究的重点是设计具有部署优势的海水提铀材料。

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Porous poly(amidoxime)-graft-chitosan/graphene oxide hydrogel beads for efficient uranium extraction from seawater

Freestanding materials with effective seawater uranium extraction performance are urgently needed for the nuclear industry. In this work, porous hydrogel beads were fabricated by compositing poly(amidoxime)-graft-chitosan (PAO-CS) and graphene oxide (GO). The PAO-CS/GO beads integrate the advantages of high-affinity amidoxime moiety, stable interconnected porous skeleton and superior hydrophilicity. The optimized structure and properties endowed PAO-CS/GO beads with a high adsorption capacity (467.07 mg g⁻¹), good ion selectivity and recoverability, with 97% extraction efficiency in simulated seawater of different concentrations (8, 16, and 32 ppm). This study emphasizes designing materials with deployment advantages for uranium extraction from seawater.

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.