当前位置：
X-MOL 学术
›
Inorg. Chem. Front.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Efficient removal of U(vi) from simulated seawater with hyperbranched polyethylenimine (HPEI) covalently modified SiO2 coated magnetic microspheres†
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2018-04-17 00:00:00 , DOI: 10.1039/c8qi00198g Wenting Li 1, 2, 3, 4, 5 , Qi Liu 1, 2, 3, 4, 5 , Rongrong Chen 1, 2, 3, 4, 6 , Jing Yu 1, 2, 3, 4, 5 , Hongsen Zhang 1, 2, 3, 4 , Jingyuan Liu 1, 2, 3, 4 , Rumin Li 1, 2, 3, 4, 5 , Milin Zhang 1, 2, 3, 4, 7 , Peili Liu 3, 4, 6 , Jun Wang 1, 2, 3, 4, 5
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2018-04-17 00:00:00 , DOI: 10.1039/c8qi00198g Wenting Li 1, 2, 3, 4, 5 , Qi Liu 1, 2, 3, 4, 5 , Rongrong Chen 1, 2, 3, 4, 6 , Jing Yu 1, 2, 3, 4, 5 , Hongsen Zhang 1, 2, 3, 4 , Jingyuan Liu 1, 2, 3, 4 , Rumin Li 1, 2, 3, 4, 5 , Milin Zhang 1, 2, 3, 4, 7 , Peili Liu 3, 4, 6 , Jun Wang 1, 2, 3, 4, 5
Affiliation
|
Herein, we report on magnetic microspheres with numerous imine groups on the surface, which have great potential for U(VI) recovery in seawater. Hyperbranched polyethylenimine (HPEI) was covalently grafted onto the surface of the core–shell structured microspheres Fe3O4@SiO2. The microstructure and chemical composition of Fe3O4@SiO2-HPEI were comprehensively characterized. Consequently, the adsorption performance at low concentrations (3–30 μg L−1) under simulated seawater was investigated and the removal rate reached more than 90%. The superior performance of the Fe3O4@SiO2-HPEI is attributed to electrostatic force and chemical bonding (between amine/imine groups and U(VI)). We recommend, therefore, Fe3O4@SiO2-HPEI as a prospective alternative adsorbent in U(VI) recovery from seawater.
中文翻译：
使用超支化聚乙烯亚胺（HPEI）共价修饰的SiO 2涂层磁性微球从模拟海水中 有效去除U（vi）†
在本文中，我们报道了表面上具有许多亚胺基团的磁性微球，这些微球具有在海水中回收U（VI）的巨大潜力。将超支化聚乙烯亚胺（HPEI）共价接枝到核壳结构微球Fe 3 O 4 @SiO 2的表面上。全面表征了Fe 3 O 4 @SiO 2 -HPEI的微观结构和化学成分。因此，研究了在模拟海水下低浓度（3–30μgL -1）下的吸附性能，去除率达到90％以上。Fe 3 O 4 @SiO的卓越性能2- HPEI归因于静电力和化学键（胺/亚胺基团与U（ VI）之间）。因此，我们建议使用Fe 3 O 4 @SiO 2 -HPEI作为从海水中回收U（ VI）的潜在替代吸附剂。
更新日期：2018-04-17
中文翻译：
使用超支化聚乙烯亚胺（HPEI）共价修饰的SiO 2涂层磁性微球从模拟海水中 有效去除U（vi）†
在本文中，我们报道了表面上具有许多亚胺基团的磁性微球，这些微球具有在海水中回收U（VI）的巨大潜力。将超支化聚乙烯亚胺（HPEI）共价接枝到核壳结构微球Fe 3 O 4 @SiO 2的表面上。全面表征了Fe 3 O 4 @SiO 2 -HPEI的微观结构和化学成分。因此，研究了在模拟海水下低浓度（3–30μgL -1）下的吸附性能，去除率达到90％以上。Fe 3 O 4 @SiO的卓越性能2- HPEI归因于静电力和化学键（胺/亚胺基团与U（ VI）之间）。因此，我们建议使用Fe 3 O 4 @SiO 2 -HPEI作为从海水中回收U（ VI）的潜在替代吸附剂。
京公网安备 11010802027423号