A Study on the Degree of Amidoximation of Polyacrylonitrile Fibers and Its Effect on Their Capacity to Adsorb Uranyl Ions

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	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
刊名	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
	2015
卷号	54 期号:12 页码:3101—3106
关键词	METAL-IONS SEA-WATER CHELATING RESINS URANIUM SEAWATER RECOVERY ADSORPTION EXTRACTION RADIATION SORBERS
英文摘要	Aroidoximation 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.
收录类别	SCI
语种	英语
公开日期	2015-12-24
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/24388]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
推荐引用方式 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.