Optimization of molar content of amidoxime and acrylic acid in UHMWPE fibers for improvement of seawater uranium adsorption capacity
Optimization of molar content of amidoxime and acrylic acid in UHMWPE fibers for improvement of seawater uranium adsorption capacity
复制标题
优化UHMWPE纤维中偕胺肟和丙烯酸的摩尔含量以提高海水铀吸附能力
DOI：
10.1007/s10967-016-5117-6
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发表时间：
2017-03-01
影响因子：
1.6
通讯作者：
Wu, Guozhong
中科院分区：
文献类型：
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作者：
Li, Rong;Pang, Lijuan;Wu, Guozhong
通过丙烯腈（AN）与丙烯酸（AA）的接枝聚合，再经偕胺肟化反应，制备了不同偕胺肟（MAO）和丙烯酸（MAA）含量的超高分子量聚乙烯（UHMWPE）纤维吸附剂。在人工海水和天然海水中进行了铀吸附实验，研究了甲基丙烯酸（MAA）和甲基丙烯酸（MAA）对超高分子量聚乙烯（UHMWPE）纤维吸附剂吸附铀能力的影响。吸附结果表明，MAO = 4.27和MAA = 4.64 mmol/g-ads的UHMWPE纤维吸附剂在人工海水（7.01 mg-U/g-ads）和天然海水（0.77 mg-U/g-ads）中均表现出较好的铀吸附性能。
Ultra-high molecular weight polyethylene (UHMWPE) fibrous adsorbents with different molar content of amidoxime (MAO) and acrylic acid (MAA) were prepared by graft polymerization of acrylonitrile (AN) and acrylic acid (AA), followed by amidoximation. Uranium adsorption experiments in both artificial and natural seawater were carried out to investigate the effect ofMAOandMAAon the uranium adsorption capacity of UHMWPE fibrous adsorbents. Adsorption results showed that the UHMWPE fibrous adsorbent withMAO= 4.27 andMAA= 4.64 mmol/g-ads exhibited better uranium adsorption capacity in both artificial (7.01 mg-U/g-ads) and natural (0.77 mg-U/g-ads) seawater.