Amidoxime-based adsorbents prepared by cografting acrylic acid with acrylonitrile onto HDPE fiber for the recovery of uranium from seawater

作     者：Lu Xu Jiang-Tao Hu Hong-Juan Ma Chang-Jian Ling Mou-Hua Wang Rong-Fang Shen Xiao-Jing Guo Yin-Ning Wang Jing-Ye Li Guo-Zhong Wu 

作者机构：Shanghai Institute of Applied PhysicsChinese Academy of Sciences Nuclear and Radiation Safety CenterMinistry of Environmental Protection of the People's Republic of China 

出 版 物：《Nuclear Science and Techniques》 (核技术（英文）)

年 卷 期：2017年第28卷第4期

页      面：13-18页

核心收录：

学科分类：08[工学] 082702[工学-核燃料循环与材料] 0805[工学-材料科学与工程（可授工学、理学学位）] 0827[工学-核科学与技术] 

基　　金：supported by the National Natural Science Foundation of China(Nos.21676291,21306220,11275252,11305243 and11405249) in part supported by the "Knowledge Innovation Program of Chinese academy of sciences" 

主　　题：Radiation-induced grafting Amidoxime Acrylonitrile Uranium Selectivity 

摘      要：An amidoxime-based polymeric adsorbent was prepared by pre-irradiation grafting of acrylonitrile and acrylic acid onto high-density polyethylene fibers using electron beams,followed by *** recovery of uranium was investigated by flow-through experiment using simulated seawater and marine test in natural *** maximum amount of uranium uptake was 2.51 mg/g-ads after 42 days of contact with simulated seawater and 0.13 mg/g-ads for 15 days of contact with natural seawater.A lower uranium uptake in marine test can be attributed to the short adsorption time and the contamination of marine microorganisms and ***,the high selectivity toward uranium against vanadium may be beneficial to harvest uranyl ion onto adsorbents and the economic feasibility for recovery of uranium from seawater.