Xu Weiwei, Li Guang, Qu Haonan, Ma Cuiguang, Zhang Haifan, Cheng Jing, Li Haibing
National Key Laboratory of Green Pesticide, College of Chemistry, Central China Normal University, Wuhan 430079, People's Republic of China.
ACS Nano. 2023 Oct 10;17(19):19305-19312. doi: 10.1021/acsnano.3c06448. Epub 2023 Sep 28.
The conspicuous surface activity and exceptional chemical stability of perfluorooctanoic acid, commonly referred to as PFOA, have led to its extensive utilization across a broad spectrum of industrial and commercial products. Nonetheless, significant concerns have arisen regarding the environmental presence of PFOAs, driven by their recognized persistence, bioaccumulative nature, and potential human health risks. In the realm of sustainable agriculture, a pivotal challenge revolves around the development of specialized materials capable of effectively and selectively eliminating PFOA from the environment. This study proposes harnessing the exceptional properties of a pillar[5]arene polymer to construct a nanochannel membrane filled with tryptophan-alanine dipeptide pillar[5]arene polymer. Through the functionalization of these nanochannel membranes, we achieved a PFOA removal rate of 0.01 mmol L min, surpassing the rates observed with other control chemicals by a factor of 4.5-15. The research on PFOA removal materials has been boosted because of the creation of this highly selective PFOA removal membrane.
全氟辛酸（通常称为PFOA）显著的表面活性和出色的化学稳定性，使其在广泛的工业和商业产品中得到了广泛应用。然而，由于PFOA具有公认的持久性、生物累积性以及潜在的人类健康风险，人们对其在环境中的存在产生了重大担忧。在可持续农业领域，一个关键挑战围绕着开发能够有效且选择性地从环境中去除PFOA的特殊材料。本研究提出利用柱[5]芳烃聚合物的特殊性质，构建一种填充有色氨酸 - 丙氨酸二肽柱[5]芳烃聚合物的纳米通道膜。通过对这些纳米通道膜进行功能化处理，我们实现了0.01 mmol L⁻¹ min⁻¹的PFOA去除率，比其他对照化学品的去除率高出4.5至15倍。这种高选择性PFOA去除膜的创制推动了PFOA去除材料的研究。
