Journal
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
Volume 331, Issue 4, Pages 1669-1682Publisher
SPRINGER
DOI: 10.1007/s10967-022-08233-0
Keywords
Amidoximated polyacrylonitrile; Uranium(VI); Composite hydrogel beed; Adsorption
Funding
- National Natural Science Foundation of China [12175103]
- Key R&D Program of Hunan Province [2018SK2029]
- Hunan Provincial Natural Science Foundation for Excellent Young Scholars [2020JJ3028]
- Scientific Research Innovation Project for Graduate of Hunan Province [CX20200913]
- Scientific Research Fund of Hunan Provincial Education Department [21A0259]
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In this study, a novel composite hydrogel bead (PSH) with high selective adsorption capacity and excellent regeneration ability for uranium(VI) was prepared. The maximum adsorption amount can reach 133.33 mg g(-1). This research demonstrated that PSH has a broad prospect of application in the field of repairing uranium-containing wastewater.
In this study, a novel type of composite hydrogel bead (PSH) was prepared by mixing of amidoximated polyacrylonitrile (PAO) and sodium alginate (SA). The structure of PSH was characterized with FT-IR, SEM and XPS. The influences of adsorption conditions on uranium(VI) adsorption by PSH were investigated by batch experiments. The kinetic and isotherm data were consistent with pseudo-second-order and Langmuir models, respectively. PSH displayed high selective adsorption capacity for uranium(VI). The maximum adsorption amount can reach 133.33 mg g(-1). PSH was separated from aqueous solution easy and showed an excellent regeneration capacity. This research demonstrated that PSH had a broad prospect of application in the field of repairing uranium-containing wastewater.
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