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功能性高膨胀环氧烯聚合物,用于快速从水中去除PFAS

Kai Zhang^1,2,3,4, Xinjie Mu¹, Zhenyu Wang¹

¹School of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China.

ACS applied materials & interfaces

|November 13, 2025

概括

一种新的纳米技术吸附剂N-F-His-CDP有效地从水中去除有害的 perfluoroalkyl 和 polyfluoroalkyl 物质 (PFAS). 这种双重功能环氧二烯聚合物可提供快速,高容量的吸附,使饮用水更清洁.

科学领域:

环境化学环境化学
材料科学材料科学材料科学
纳米技术纳米技术

背景情况:

perfluoroalkyl和 polyfluoroalkyl物质 (PFAS) 是持久污染物,由于其稳定性和生物积累,威胁水生生态系统和人类健康.
传统的吸附剂因选择性低,容量低,动力学缓慢以及超追踪PFAS去除效率差而困难.

研究的目的:

开发一种纳米技术支持的解决方案,以有效和快速吸附PFAS.
设计一个具有双功能的,高膨胀的循环二烯聚合物 (N-F-His-CDP) 吸附剂,并配备一个协同捕获网络.

主要方法:

制造具有高特异性表面积的等级性半孔N-F-His-CDP吸附剂.
构建一个3D分子规模的协同捕获网络,以增强PFAS吸附.
研究 perfluorooctanoic 酸 (PFOA) 的吸附动力学和去除效率.

主要成果:

N-F-His-CDP证明了PFAS的快速和高容量的吸附,在10秒内达到68%的PFOA吸附,在1分钟内达到99%的去除.
观察到的运动速率常数 (k_obs = 32.44 g·mg−1·h−1) 比活性炭高30倍.
吸附剂的设计通过其中孔网和密集的吸附点,促进了同时快速吸附和高容量.

结论:

N-F-His-CDP为PFAS清除提供了高效和快速的解决方案,超过了传统的吸附剂.
这种纳米技术方法结合了纳米孔结构和接口工程,以实现可持续的水资源整治.
开发的吸附剂为饮用水安全提供成本效益高,对环境无害的解决方案奠定了典范.

关键词:

在PFAS中,有很多方法.吸附剂是一种吸附剂.循环德克斯林聚合物处理水处理水的方法

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