Molecularly Imprinted Porous Aromatic Frameworks and Their Composite Components for Selective Extraction of Uranium Ions,Advanced Materials

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Molecularly Imprinted Porous Aromatic Frameworks and Their Composite Components for Selective Extraction of Uranium Ions
Advanced Materials ( IF 27.4 ) Pub Date : 2018-02-09 , DOI: 10.1002/adma.201706507
Ye Yuan ₁ , Yajie Yang ₁ , Xujiao Ma ₁ , Qinghao Meng ₁ , Lili Wang ₁ , Shuai Zhao ₁ , Guangshan Zhu ₁

Affiliation

Selective extraction of uranium from water has attracted worldwide attention because the largest source of uranium is seawater with various interference ions (Na⁺, K⁺, Mg²⁺, Ca²⁺, etc.). However, traditional adsorbents encapsulate most of their functional sites in their dense structure, leading to problems with low selectivity and adsorption capacities. In this work, the tailor‐made binding sites are first decorated into porous skeletons, and a series of molecularly imprinted porous aromatic frameworks are prepared for uranium extraction. Because the porous architecture provides numerous accessible sites, the resultant material has a fourfold increased ion capacity compared with traditional molecularly imprinted polymers and presents the highest selectivity among all reported uranium adsorbents. Moreover, the porous framework can be dispersed into commercial polymers to form composite components for the practical extraction of uranium ions from simulated seawater.

中文翻译：

分子印迹多孔芳族骨架及其选择性萃取铀离子的复合组分

由于铀的最大来源是具有各种干扰离子（Na ⁺，K ⁺，Mg 2 ⁺，Ca ²⁺， ETC。）。然而，传统的吸附剂将大多数功能位点封装在其致密的结构中，从而导致选择性和吸附能力低的问题。在这项工作中，首先将量身定制的结合位点装饰到多孔骨架中，然后准备一系列分子印迹的多孔芳族骨架以进行铀萃取。因为多孔结构提供了许多可访问的位置，所以与传统的分子印迹聚合物相比，所得材料的离子容量增加了四倍，并且在所有报道的铀吸附剂中具有最高的选择性。此外，可以将多孔框架分散到商业聚合物中以形成复合成分，以从模拟海水中实际提取铀离子。

更新日期：2018-02-09

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