A novel ion-imprinted amidoxime-functionalized UHMWPE fiber based on radiation-induced crosslinking for selective adsorption of uranium.
A novel ion-imprinted amidoxime-functionalized UHMWPE fiber based on radiation-induced crosslinking for selective adsorption of uranium.
复制标题
一种基于辐射诱导交联的新型离子印迹偕胺肟功能化UHMWPE纤维，用于选择性吸附铀
DOI：
10.1039/c9ra05440e
复制
发表时间：
2019-09-09
期刊：
影响因子：
3.9
通讯作者：
Ma, Hongjuan
中科院分区：
文献类型：
--
作者：
Ao, Junxuan;Zhang, Hongjun;Xu, Xiao;Yao, Fujia;Ma, Lin;Zhang, Lan;Ye, Bangjiao;Li, Qingnuan;Xu, Lu;Ma, Hongjuan
采用辐射诱导交联法制备了偕胺肟功能化超高分子量聚乙烯纤维（AO纤维）的新型铀印迹吸附剂AO- imp纤维。采用扫描电子显微镜（SEM）和正电子湮灭寿命（PAL）光谱对离子印迹后的多孔结构进行了表征。在批量实验中，该离子印迹纤维对UO22−和[UO2(CO3)3]4−形式的铀均表现出增强的吸附选择性。与AO纤维相比，AO- imp（250）纤维在模拟海水中对铀的吸附量从0.36 mg g−1提高到1.00 mg g−1，在模拟酸性废水中对铀的吸附量从5.02 mg g−1提高到12.03 mg g−1，而对其他共存金属离子的吸附量尤其低。本研究提供了一种无需引入交联试剂制备离子印迹吸附剂的方法，这可能是一种很有前途的铀萃取方法。
A novel uranium-imprinted adsorbent (AO-Imp fiber) was prepared by radiation-induced crosslinking of amidoxime-functionalized ultra-high molecular weight polyethylene fiber (AO fiber). The porous structure was characterized by scanning electron microscopy (SEM) and positron annihilation lifetime (PAL) spectroscopy after ion imprinting. This ion-imprinted fiber exhibited enhanced adsorption selectivity for uranium in the form of both UO22− and [UO2(CO3)3]4− in batch experiments. Compared with AO fiber, the adsorption capacity of the AO-Imp(250) fiber for uranium increased from 0.36 mg g−1 to 1.00 mg g−1 in simulated seawater and from 5.02 mg g−1 to 12.03 mg g−1 in simulated acid effluent, while its adsorption capacities for other co-existing metal ions were particularly low. This study provides an approach to prepare ion-imprinted adsorbents without introducing crosslinking reagents, which may be a promising method for uranium extraction.
登录
查看更多内容
磷酸盐基超高分子量聚乙烯纤维可有效去除含氟离子碳酸盐溶液中的铀
DOI：
10.3390/molecules23061245
发表时间：
2018-05-23
期刊：
Molecules (Basel, Switzerland)
影响因子：
--
作者：
Li R;Li Y;Zhang M;Xing Z;Ma H;Wu G
通讯作者：
Wu G
使用功能化纤维作为配体、还原剂和模板制备金纳米结构微管的新途径
影响因子：
9.5
作者：
Ma, Hongjuan;Chi, Hongying;Seko, Noriaki
通讯作者：
Seko, Noriaki
辐射接枝制备偕胺肟化超高分子量聚乙烯纤维及铀吸附试验
影响因子：
4.2
作者：
Hu, Jiangtao;Ma, Hongjuan;Wu, Guozhong
通讯作者：
Wu, Guozhong
影响因子：
4.2
作者：
Endrizzi, Francesco;Leggett, Christina J.;Rao, Linfeng
通讯作者：
Rao, Linfeng
影响因子：
4.2
作者：
Brown, Suree;Yue, Yanfeng;Dai, Sheng
通讯作者：
Dai, Sheng