CAS OpenIR  > 中科院上海应用物理研究所2011-2019年
A Study on the Degree of Amidoximation of Polyacrylonitrile Fibers and Its Effect on Their Capacity to Adsorb Uranyl Ions
Zhao, HH; Liu, XY; Yu, M; Wang, ZQ; Zhang, BW; Ma, HJ; Wang, M; Li, JY
2015
Source PublicationINDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
Volume54Issue:12Pages:3101—3106
Subtype期刊文献
AbstractAroidoximation of polyacrylonitrile (PAN) fibers was studied by reacting them with hydroxylamine. The chemical structure, mechanical intensity, and morphologies of PAN and amidoximated PAN (AO PAN) fibers were evaluated by Fourier transform infrared spectroscopy, tensile tests, dynamic mechanical analysis, and scanning electron microscopy, respectively. A higher degree of amidOximation resulted in a higher conversion ratio (CR) of the nitrile group and a higher density of the. arnidoxithe group, while also reducing the mechanical intensity of the fibers. During amidoxirnation, a hydrogel layer formed on the fiber surface by bonding with H20 molecules, increasing the diameter of the AO-PAN fibers. The layer thickness increased as the CR of the AO-PAN fibers' oitrile group was increased. The hydrogel layer decreased the adsorption capability by hindering the diffilsion of uranyl ions to the interior of the AO-PAN fibers. Therefore, a CR of about 10.8% would provide an.appropriate balance between the mechanical properties and the adsorption capability.
KeywordMetal-ions Sea-water Chelating Resins Uranium Seawater Recovery Adsorption Extraction Radiation Sorbers
Indexed BySCI
Language英语
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/24388
Collection中科院上海应用物理研究所2011-2019年
Recommended Citation
GB/T 7714
Zhao, HH,Liu, XY,Yu, M,et al. A Study on the Degree of Amidoximation of Polyacrylonitrile Fibers and Its Effect on Their Capacity to Adsorb Uranyl Ions[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2015,54(12):3101—3106.
APA Zhao, HH.,Liu, XY.,Yu, M.,Wang, ZQ.,Zhang, BW.,...&Li, JY.(2015).A Study on the Degree of Amidoximation of Polyacrylonitrile Fibers and Its Effect on Their Capacity to Adsorb Uranyl Ions.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,54(12),3101—3106.
MLA Zhao, HH,et al."A Study on the Degree of Amidoximation of Polyacrylonitrile Fibers and Its Effect on Their Capacity to Adsorb Uranyl Ions".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH 54.12(2015):3101—3106.
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