从聚胺构建基功能化的超交联网络,用于高效的吸附
Jianjun Wang1,2, Tingting Wu1, Xianlong Wang1
1College of Materials Science and Engineering, Qiqihar University, Wenhua Street 42, Qiqihar, Heilongjiang 161006, China.
iScience
|February 8, 2024
概括
研究人员开发了基功能化超交联聚合物 (PIHCPs) 以有效捕获. 这些先进材料具有超高的吸收能力和有效的从水溶液中去除,显示出环境修复的巨大潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 核工程 核工程是指核工程.
背景情况:
- 核能发展带来环境和健康风险.
- 有效地去除放射性对于安全至关重要.
研究的目的:
- 为了合成新的基功能化超交联聚合物 (PIHCPs).
- 评估PIHCPs的捕获能力和效率.
主要方法:
- 用于聚合物合成的Friedel-Crafts化反应.
- 聚合物形态,稳定性和多孔性的表征.
- 吸附实验和运动分析.
- 静电电位 (ESP) 的计算.
主要成果:
- 合成的PIHCP-1和PIHCP-2具有微/半孔结构.
- 达到超高的吸收能力 (6.73 g g-1).
- 从水溶液中证明了高的去除效率 (99.7%).
- 证实了多层化学吸收机制和基组贡献.
结论:
- 由于高孔隙性和活性位点,PIHCP 具有出色的捕获性能.
- 这些材料显示出良好的可回收性,在四个循环后保持超过91%的效率.
- 在的环境修复方面,PIHCP是有前途的吸收剂.
相关概念视频
Ion Exchange
592
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
592
Ion-Exchange Chromatography
492
Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
492


