乙二胺改性湿纺聚丙烯腈/偕胺肟聚丙烯腈复合纤维去除水溶液中U(VI)污染

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2023-07-21 DOI:10.1007/s10967-023-09007-y

Peng Liu, Hui Ruan, Tiantian Li, Haichao Wang, Fuqiu Ma

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引用次数: 0

摘要

采用湿法纺丝技术制备了聚丙烯腈/偕胺肟聚丙烯腈复合纤维(PAN/PAO)，并采用溶剂热法制备了乙二胺改性PAN/PAO纤维(PAN/PAO- nh2)，用于吸附U(VI)。制备的PAN/PAO-NH2纤维对模拟溶液中的U(VI)具有良好的吸附能力(pH = 5时qmax = 151.54 mg g−1)。XPS结果表明，氨基和胺肟基与U(VI)络合，在吸附过程中起重要作用。PAN/PAO-NH2纤维具有良好的工业生产潜力。结果表明，该复合材料是去除含铀废水中铀(VI)的理想材料。

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Removal of U(VI) contamination from aqueous solution by ethylenediamine modified wet spinning polyacrylonitrile/amidoxime polyacrylonitrile composite fibers

The polyacrylonitrile/amidoxime polyacrylonitrile composite (PAN/PAO) fibers were prepared by wet spinning technology, and ethylenediamine modified PAN/PAO fibers (PAN/PAO-NH₂) were prepared by solvothermal method for U(VI) adsorption. The prepared PAN/PAO-NH₂ fibers possessed a favorable adsorption capacity (q_max = 151.54 mg g⁻¹ at pH = 5) for U(VI) in simulated solution. The XPS results showed that the amino group and amine oxime group played an important role in the adsorption process by complexing with U(VI). The PAN/PAO-NH₂ fibers showed desirable potential for industrial production. The results herein suggest that the proposed composite is a promising and suitable candidate for the removal of U(VI) from 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.