Hydrolytically Stable Ionic Fluorogels for High-Performance Remediation of Per- and Polyfluoroalkyl Substances (PFAS) from Natural Water.
Hydrolytically Stable Ionic Fluorogels for High-Performance Remediation of Per- and Polyfluoroalkyl Substances (PFAS) from Natural Water.
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DOI：
10.1002/anie.202208150
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发表时间：
2022-10-10
影响因子：
16.6
通讯作者：
Leibfarth, Frank A.
中科院分区：
文献类型：
--
作者：
Manning, Irene M.;Chew, Nick Guan Pin;Macdonald, Haley P.;Miller, Kelsey E.;Strynar, Mark J.;Coronell, Orlando;Leibfarth, Frank A.
PFAS是已知的生物蓄积性和持久性化学品，污染全球自然水域。目前缺乏颗粒状吸附剂来有效地去除与环境相关浓度的遗留和新出现的PFAS。在此，我们报道了一类具有离子和氟组分协同组合的聚合物网络，作为颗粒材料，用于从水中去除阴离子PFAS。以水解稳定的含氟构建块为原料，合成了具有系统电荷密度变化和聚合物网络结构的离子氟凝胶（IFs）库。实验证明，IFs是一种有效的吸附剂，可以从天然水中去除21种遗留的和新出现的PFAS，并且可以多次重复使用。通过对一种IF与一种商业离子交换树脂在小型快速柱测试中的比较，证明了在操作相关条件下，IF在去除天然水中的短链PFAS方面具有优越的性能。设计和合成的离子交换树脂库可选择性地从实际水中去除PFAS，从而可以评估具有高PFAS亲和性的化学稳定聚合物网络的结构-性能关系。颗粒状离子氟凝胶树脂是一种有效的PFAS修复吸附剂，在使用天然水的填充床柱中表现出优异的翻译相关性能。
PFAS are known bioaccumulative and persistent chemicals which pollute natural waters globally. There exists a lack of granular sorbents to efficiently remove both legacy and emerging PFAS at environmentally relevant concentrations. Herein, we report a class of polymer networks with a synergistic combination of ionic and fluorous components that serve as granular materials for the removal of anionic PFAS from water. A library of Ionic Fluorogels (IFs) with systematic variation in charge density and polymer network architecture was synthesized from hydrolytically stable fluorous building blocks. The IFs were demonstrated as effective sorbents for the removal of 21 legacy and emerging PFAS from a natural water and were regenerable over multiple cycles of reuse. Comparison of one IF to a commercial ion exchange resin in mini‐rapid small‐scale column tests demonstrated superior performance for the removal of short‐chain PFAS from natural water under operationally relevant conditions. The design and synthesis of a library of ion exchange resins that are selective for PFAS removal from real water enabled the evaluation of structure–property relationships of the chemically stable polymer networks with high PFAS affinity. The granular Ionic Fluorogel resin is a potent PFAS remediation sorbent and demonstrated excellent performance in translationally relevant flow‐through packed bed columns using natural water.
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影响因子：
13.6
作者：
Appleman, Timothy D.;Dickenson, Eric R. V.;Higgins, Christopher P.
通讯作者：
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影响因子：
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作者：
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de Solla, S. R.;De Silva, A. O.;Letcher, R. J.
通讯作者：
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64.8
作者：
Alsbaiee, Alaaeddin;Smith, Brian J.;Dichtel, William R.
通讯作者：
Dichtel, William R.