协价有机框架中空心球体的侧链工程,用于从盐水中高效捕获
Wenqing Wang1, Hao Li1, Yanan Huang1
1School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang, Jiangsu, 212013, China.
Angewandte Chemie (International ed. in English)
|November 18, 2025
概括
侧链工程创造了空洞,稳定的,多功能化的共价有机框架 (COFs) 来有效地从盐水中去除. 这些新型COF吸附剂显示出优越的容量和选择性,验证了它们在恶劣条件下的实际应用.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 共价有机框架 (COF) 为化学分离提供可调节的特性.
- 挑战包括COF中无序的堆叠和有限的功能组可访问性.
- 从盐水中有效捕获仍然是一个关键的环境挑战.
研究的目的:
- 开发一种新的侧链工程战略,用于制造先进的COF吸附剂.
- 为了提高COF的稳定性,孔隙的可访问性和基化能力.
- 评估新COF材料的性能,以从盐水中去除.
主要方法:
- 通过侧链工程制造空洞,稳定,聚功能化COF (HSPCOF).
- 描述HSPCOF的特性,包括表面积和孔隙结构.
- 在合成和真实盐水溶液中进行吸附实验.
- 密度函数理论 (DFT) 模拟以阐明吸附机制.
主要成果:
- HSPCOF显示出高吸附能力为150.05毫克g-1在298K,显著超过商业树脂.
- DFT模拟证实了酸盐离子通过与聚醇组的双酸盐循环形成的优先结合.
- 在恶劣的盐湖盐水中,HSPCOF表现出色,容量为848.79毫克g-1和91.51%的去除效率.
结论:
- 侧链工程是设计精确和功能性的COF材料的可行策略.
- HSPCOF是一种高效和稳定的吸附剂,用于从具有挑战性的水环境中捕获.
- 这种方法为开发基于COF的先进分离材料提供了通用准则.
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