High mechanical property and hydrophilic electrospun poly amidoxime/poly acrylonitrile composite nanofibrous mats for extraction uranium from seawater

被引：0

作者：

Alali K.T. ^{[1
,2
]}

Tan S. ^{[1
]}

Zhu J. ^{[2
]}

Liu J. ^{[2
]}

Yu J. ^{[2
]}

Liu Q. ^{[2
]}

Wang J. ^{[2
]}

机构：

[1] College of Nuclear Science and Technology, Harbin Engineering University, Harbin

[2] Key Laboratory of Superlight Material and Surface Technology, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin

来源：

Chemosphere | 2024年 / 351卷

基金：

中国国家自然科学基金;

关键词：

Composite nanofibrous mat; Electrospinning; High hydrophilic surface; Poly amidoxime; Uranium extraction from seawater;

D O I：

10.1016/j.chemosphere.2024.141191

中图分类号：

学科分类号：

摘要：

Seawater reserves about 4.5 billion tons of uranium, if properly extracted, could be a sustainable green energy resource for hundreds of years, alternating its limited terrestrial ore and reducing the CO2 emitted from fossil fuels. The current seawater uranium adsorbents suffer neither economically viable nor adsorption efficiency, requiring more development to harvest satisfactorily uranium from seawater. Amidoxime-based fibrous adsorbents are the most promising adsorbents of seawater uranium due to abundant chelating sites. However, they suffer from severe shrinkage and stiffness once they dry, losing porous architecture and mechanical properties. Herein, an economical and scalable two-nozzle electrospinning technology was applied to produce poly amidoxime nanofibers (PAO NFs) supported by Poly acrylonitrile nanofibers (PAN NFs) as composite PAO/PAN nanofibrous mats with high structure stability. These PAO/PAN mats, with rapid wettability and excellent mechanical strength, show promising uranium adsorption capacities of 369.8 mg/g at seawater pH level, much higher than PAO and PAN NFs. The uranium adsorption capacity of the PAO/PAN mat reached 5.16 mg/g after 7 days of circulating (10 ppm uranium) spiked natural seawater. Importantly, the composite mat maintained its fibrous structure after five adsorption-desorption cycles with more than 80 % of its adsorption capacity, confirming its recyclability and stability. Therefore, the composite PAO/PAN mat fulfills the basic requirements for effectively and economically trapping uranium from seawater, which could be a matrix for further development. © 2024 Elsevier Ltd

引用

共 63 条

[1]

Abney C.W., Mayes R.T., Saito T., Dai S., Materials for the recovery of uranium from seawater, Chem. Rev., 117, pp. 13935-14013, (2017)

[2]

Alali K.T., Liu J., Liu Q., Li R., Zhang H., Aljebawi K., Liu P., Wang J., Enhanced acetone gas sensing response of ZnO/ZnCo<sub>2</sub>O<sub>4</sub> nanotubes synthesized by single capillary electrospinning technology, Sens. Actuators B Chem., 252, pp. 511-522, (2017)

[3]

Alali K.T., Liu J., Liu Q., Li R., Aljebawi K., Wang J., Grown carbon nanotubes on electrospun carbon nanofibers as a 3D carbon nanomaterial for high energy storage performance, ChemistrySelect, 4, pp. 5437-5458, (2019)

[4]

Alali K.T., Jing Y., Moharram D., Liu Q., Chen R., Zhu J., Li R., Liu P., Liu J., Wang J., In situ construction of 3-dimensional hierarchical carbon nanostructure

[5]

investigation of the synthesis parameters and hydrogen evolution reaction performance, Carbon, 178, pp. 48-57, (2021)

[6]

Bai J., Chu J., Yin X., Wang J., Tian W., Huang Q., Jia Z., Wu X., Guo H., Qin Z., Synthesis of amidoximated polyacrylonitrile nanoparticle/graphene composite hydrogel for selective uranium sorption from saline lake brine, Chem. Eng. J., 391, (2020)

[7]

Bazbouz M.B., Aziz A., Copic D., De Volder M., Welland M.E., Fabrication of high specific electrical conductivity and high ampacity carbon nanotube/copper composite wires, Adv. Electron. Mater., 7, (2021)

[8]

Chen Y., Jiang L.Y., A core-shell amidoxime electrospun nanofiber affinity membrane for rapid recovery Au (III) from water, Chin. J. Chem. Eng., (2021)

[9]

Chen Y., Jiang L., A core–shell amidoxime electrospun nanofiber affinity membrane for rapid recovery Au (III) from water, Chin. J. Chem. Eng., 42, pp. 424-436, (2022)

[10]

Cui W.-R., Zhang C.-R., Jiang W., Li F.-F., Liang R.-P., Liu J., Qiu J.-D., Regenerable and stable sp2 carbon-conjugated covalent organic frameworks for selective detection and extraction of uranium, Nat. Commun., 11, (2020)

← 1 2 3 4 5 6 7 →