Properties and evaluation of amidoxime-based UHMWPE fibrous adsorbent for extraction of uranium from seawater

查看全文 作　　者：XING [1]Zhe;HU [1]JiangTao;WANG [1]MouHua;ZHANG [1]WenLi;LI [1]ShiNeng;GAO [1]QianHong;WU [1]GuoZhong

机构地区：[1]Shanghai Institute of Applied Physics,Chinese Academy of Sciences

出　　处：《Science China Chemistry》索引2013年第56卷第11期,共6页

基　　金：supported by the National Natural Science Foundation of China (11275252);the Key Program of Strategically Advanced Science and Technology Project of the Chinese Academy of Sciences (XDA02040301);the Knowledge Innovation Program of Chinese Academy of Sciences 摘　　要：An amidoxime-based ultra-high molecular weight polyethylene(UHMWPE)fibrous adsorbent was successfully prepared by γ-irradiation-induced graft copolymerization of acrylonitrile(AN)and acrylic acid(AA),followed by amidoximation.The grafting of AN and AA on the UHMWPE fiber and the amidoximation of the grafted fiber were confirmed by Fourier transform infrared spectroscopy,scanning electron microscopy,and thermogravimetric analysis.The mechanical property of the original and modified UHMWPE fibers was compared by single-filament strength test.The adsorption property of the UHMWPE fibrous adsorbent was evaluated by adsorption test in uranyl nitrate solution and seawater.The surface of the modified UHMWPE fibers was covered by the grafting layer and became rough.The tensile strength of the amidoxime-based UHMWPE fibrous adsorbent was influenced by the absorbed dose and hydrochloric acid elution,but was independent of the grafting yield and amidoximation.The uranium adsorption amount of the amidoxime-based UHMWPE fibrous adsorbent after immersing in seawater for 42 days was 2.3 mg-U/g. 关键词：超高分子量聚乙烯纤维硝酸铀酰溶液偕胺肟基吸附剂海水 UHMWPE纤维扫描电子显微镜提取

相关文献

参考文献（22）
引证文献（18）
耦合文献（12）

参考文献(22)

引证文献(18)

耦合文献(12)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Properties and evaluation of amidoxime-based UHMWPE fibrous adsorbent for extraction of uranium from seawater

参考文献(22)

引证文献(18)

耦合文献(12)

用户提示