偕胺肟和多胺双官能团改性湿纺聚丙烯腈-聚偕胺肟纤维的制备及其对水溶液中U（VI）的吸附

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2025-04-02 DOI:10.1007/s10967-025-10045-x

Yunyang Gui, Hui Ruan, Haitao Wang, Tiantian Li, Yanrui Liu, Teng He, Yun Xue, Fuqiu Ma, Peng Liu

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引用次数: 0

摘要

采用湿纺法和水热法制备了一种新型偕胺肟和多胺双官能团改性聚丙烯腈-聚偕胺肟基纤维吸附剂（PAN-PAO-NH2-AO）。通过各种方法表征了纤维的结构、形态和性能，以证明偕胺肟和多胺基团在纤维上的附着。在pH为5、K为298的条件下，该材料的最高吸附量为236.3 mg/g。对纤维吸附机理的研究表明，在XPS下，N和O原子的孤对电子与U（VI）配位。结果表明，PAN-PAO-NH2-AO纤维是一种有潜力的含铀废水净化材料。

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Preparation of amidoxime and polyamine bifunctional modified wet-spun polyacrylonitrile–polyamidoxime fibers for adsorption of U(VI) from aqueous solution

A novel amidoxime and polyamine bifunctional modified polyacrylonitrile-polyamidoxime-based fiber adsorbent (PAN-PAO-NH₂-AO) was prepared using wet-spun and hydrothermal methods. The structure, morphology, and properties of the fibers were characterized by various methods to demonstrate the attachment of amidoxime and polyamine groups onto the fibers. The highest adsorption capacity of the material reached 236.3 mg/g at pH 5 and 298 K. The study of the adsorption mechanism of the fibers showed that the lone pair of electrons of the N and O atoms coordinated with U(VI) by XPS. The results show that PAN-PAO-NH₂-AO fibers are a potential decontamination material for uranium-containing wastewater.

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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.