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ShanghaiTech University Knowledge Management System
Radiation synthesis of a new amidoximated UHMWPE fibrous adsorbent with high adsorption selectivity for uranium over vanadium in simulated seawater | |
2016-05 | |
发表期刊 | RADIATION PHYSICS AND CHEMISTRY (IF:2.8[JCR-2023],2.6[5-Year]) |
ISSN | 0969-806X |
卷号 | 122页码:1-8 |
发表状态 | 已发表 |
DOI | 10.1016/j.radphyschem.2015.12.023 |
摘要 | A new kind of highly efficient adsorbent material has been fabricated in this study for the purpose of extracting uranium from seawater. Ultra-high molecular weight polyethylene (UHMWPE) fiber was used as a trunk material for the adsorbent, which was prepared by a series of modification reactions, as follows: (1) grafting of glycidyl methacrylate (GMA) and methyl acrylate (MA) onto UHMWPE fibers via Co-60 gamma-ray pre-irradiation; (2) aminolyzation of UHMWPE fiber by the ring-opening reaction between of epoxy groups PGMA and ethylene diamine (EDA); (3) Michael addition of amino groups with acrylonitrile (AN) to yield nitrile groups; (4) amidoximation of the attached nitrile moieties by hydroxylamine in dimethyl sulfoxide-water mixture. Modified UHMWPE fibers were characterized by means of attenuated total reflectance-Fourier transformed infrared spectroscopy (ATR-FTIR), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM) to confirm the attachment of amidoxime (AO) groups onto the UHMWPE fibers. The results of X-ray diffraction (XRD) and single fiber tensile strength verified that the modified UHMWPE fiber retained excellent mechanical properties at a low absorbed radiation dose. The adsorption performance of the UHMWPE fibrous adsorbent was evaluated by subjecting it to an adsorption test in simulated seawater using a continuous-flow mode. The amount of uranium adsorbed by this AO-based UHMWPE fibrous adsorbent was 1.97 mg-U/g after 42 days. This new adsorbent also showed high selectivity for the uranyl ion, and its selectivity for metal ions was found to decrease in the following order: U > Cu > Fe > Ca > Mg > Ni > Zn > Pb > V > Co. The adsorption selectivity for uranium is significantly higher than that for vanadium. In addition, preparation of this modified adsorbent consumes much smaller amounts of the toxic acrylonitrile monomer than the conventional preparation methods of AO-based polyethylene fibers. (C) 2016 Published by Elsevier Ltd. |
关键词 | Ultra-high molecular weight polyethylene fiber Radiation grafting Amidoximation Uranium extraction Glycidyl methacrylate |
收录类别 | SCI ; EI |
语种 | 英语 |
资助项目 | National Natural Science Foundation of China[11305243] ; National Natural Science Foundation of China[21306220] ; National Natural Science Foundation of China[11275252] ; National Natural Science Foundation of China[11405249] |
WOS研究方向 | Chemistry ; Nuclear Science & Technology ; Physics |
WOS类目 | Chemistry, Physical ; Nuclear Science & Technology ; Physics, Atomic, Molecular & Chemical |
WOS记录号 | WOS:000370900800001 |
出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
EI入藏号 | 20160501859261 |
EI主题词 | Acrylic monomers ; Addition reactions ; Adsorption ; Amines ; Copper ; Cyanides ; Dimethyl sulfoxide ; Ethylene ; Fibers ; Fourier transform infrared spectroscopy ; Gamma rays ; Grafting (chemical) ; Infrared spectroscopy ; Lead ; Metal ions ; Metals ; Molecular weight ; Nonmetallic matrix composites ; Scanning electron microscopy ; Seawater ; Tensile strength ; Thermogravimetric analysis ; Ultrahigh molecular weight polyethylenes ; Uranium ; Uranium compounds ; Vanadium ; X ray diffraction |
EI分类号 | Seawater, Tides and Waves:471.4 ; Metallurgy:531.1 ; Vanadium and Alloys:543.6 ; Copper:544.1 ; Lead and Alloys:546.1 ; Minor, Precious and Rare Earth Metals and Alloys:547 ; Chemistry:801 ; Chemical Reactions:802.2 ; Chemical Operations:802.3 ; Organic Compounds:804.1 ; Inorganic Compounds:804.2 ; Organic Polymers:815.1.1 ; Atomic and Molecular Physics:931.3 |
WOS关键词 | EMULSION GRAFT-POLYMERIZATION ; MOLECULAR-WEIGHT POLYETHYLENE ; URANYL-ION ADSORPTION ; AMINE-TYPE ADSORBENTS ; GLYCIDYL METHACRYLATE ; RECOVERY ; FIBER ; EXTRACTION ; ACRYLONITRILE ; TEMPERATURE |
原始文献类型 | Article |
引用统计 | 正在获取...
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文献类型 | 期刊论文 |
条目标识符 | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/1858 |
专题 | 物质科学与技术学院_特聘教授组_吴国忠组 |
通讯作者 | Wu, Guozhong |
作者单位 | 1.Chinese Acad Sci, Shanghai Inst Appl Phys, CAS Ctr Excellence TMSR Energy Syst, 2019 Jialuo Rd, Shanghai 201800, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China |
通讯作者单位 | 物质科学与技术学院 |
推荐引用方式 GB/T 7714 | Gao, Qianhong,Hu, Jiangtao,Li, Rong,et al. Radiation synthesis of a new amidoximated UHMWPE fibrous adsorbent with high adsorption selectivity for uranium over vanadium in simulated seawater[J]. RADIATION PHYSICS AND CHEMISTRY,2016,122:1-8. |
APA | Gao, Qianhong.,Hu, Jiangtao.,Li, Rong.,Xing, Zhe.,Xu, Lu.,...&Wu, Guozhong.(2016).Radiation synthesis of a new amidoximated UHMWPE fibrous adsorbent with high adsorption selectivity for uranium over vanadium in simulated seawater.RADIATION PHYSICS AND CHEMISTRY,122,1-8. |
MLA | Gao, Qianhong,et al."Radiation synthesis of a new amidoximated UHMWPE fibrous adsorbent with high adsorption selectivity for uranium over vanadium in simulated seawater".RADIATION PHYSICS AND CHEMISTRY 122(2016):1-8. |
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