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多功能REE选择性混合膜基于离子印记聚合物和修改的多壁碳纳米管:一个物理化学表征

Aleksandra Rybak¹, Aurelia Rybak², Sławomir Boncel³

¹Department of Physical Chemistry and Technology of Polymers, Faculty of Chemistry, Silesian University of Technology, Strzody 7, 44-100 Gliwice, Poland.

International journal of molecular sciences

|August 14, 2025

概括

新型混合膜结合了改造的奇托桑,功能化碳纳米管和稀土元素离子印记的聚合物,证明了用于有效的稀土元素回收的增强磁性和机械性质.

科学领域:

材料科学材料科学材料科学
纳米技术纳米技术
分离科学分离科学

背景情况:

开发用于选择性分离稀土元素 (REEs) 的先进材料对于可持续的资源管理至关重要.
现有的REE回收方法经常面临效率,选择性和材料稳定性方面的挑战.

研究的目的:

设计和描述用于选择性回收REE的新型多功能混合膜.
为了研究修饰的奇托,功能化的多壁碳纳米管 (MWCNTs) 和稀土元素离子印记聚合物 (REEIIPs) 对膜性质的影响.

主要方法:

在外部磁场中使用造方法合成混合膜.
材料的表征包括TGA,SEM,VSM,XRD,X射线微断层扫描和FTIR.
评估了机械,质和分离性能 (排斥率).

主要成果:

混合膜表现出可调节的弱铁磁性质,和磁化随MWCNT含量增加而增加.
热氧化稳定性显著提高,一些膜稳定度高达730°C.
提高了机械和质性质,并实现了Nd (94.35%),Pr (92.12%) 和Gd (90.11%) 的高排斥比率.

结论:

设计的混合膜提供了一个有前途的平台,用于有效和选择性回收REEs,如Nd,Pr和Gd.
组件的协同作用组合导致了材料稳定性,磁性可调性和分离性能的提高.
这些膜具有很大的应用潜力,用于从复杂的矩阵 (如煤炭飞灰提取物) 中回收REE.

关键词:

功能化的MWCNTs.有离子印记的生物聚合物它具有磁性,具有磁性属性.机械性能机械性能机械性能多功能混合膜多功能混合膜热稳定性的热稳定性

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