Metal-organic frameworks as platforms for the removal of per- and polyfluoroalkyl substances from contaminated waters
Metal-organic frameworks as platforms for the removal of per- and polyfluoroalkyl substances from contaminated waters
复制标题
DOI：
10.1016/j.matt.2022.07.028
复制
发表时间：
2022-10
期刊：
影响因子：
18.9
通讯作者：
Rui Li;N. N. Adarsh-N.;Hui Lu;Mario Wriedt
中科院分区：
文献类型：
--
作者：
Rui Li;N. N. Adarsh-N.;Hui Lu;Mario Wriedt
多氟烷基和全氟烷基物质（PFAS）由于其在环境中的毒性、普遍存在性和难降解性而受到广泛关注。生产和处置含有PFAS的产品导致PFAS污染地下水和饮用水供应。由于PFAS与许多不良健康影响有关，因此引发了开发PFAS处理技术的极大兴趣和努力。使用活性炭和离子交换的物理分离是从污染水中去除PFAS的最广泛采用的技术。然而，这两种吸附剂通常表现出低PFAS吸附容量和/或缓慢的吸附动力学。开发高效的吸附剂是当务之急。金属-有机骨架材料是一种新型的纳米多孔杂化材料，由无机和有机结构单元组成多维网络。关键特征-可调结构和高内表面积-使MOFs成为从水环境中去除PFAS的理想平台。本文综述了MOFs在PFAS去除中的应用，并重点介绍了MOFs在PFAS去除性能方面的结构特征。影响PFAS检测的吸附效率，再生和应用的因素进行了广泛的讨论，同时也提供了重要的见解与改进的PFAS去除性能的下一代MOF材料的设计策略。
Poly- and perfluoroalkyl substances (PFAS) have received considerable attention due to their toxicity, ubiquitous presence, and recalcitrance in the environment. The manufacturing and disposal of PFAS-containing products has resulted in PFAS contamination of groundwater and drinking water supplies. Substantial interest and efforts in developing PFAS treatment technologies has been triggered since PFAS are associated with numerous adverse health effects. Physical separation using activated carbon and ion exchange is the most widely adopted technique for PFAS removal from contaminated water. However, both adsorbents generally exhibit low PFAS adsorption capacities and/or slow adsorption kinetics. The development of efficient adsorbents is of urgent need. Metal-organic frameworks (MOFs) are an emerging class of hybrid crystalline nanoporous materials, which are composed of inorganic and organic building blocks to form multidimensional networks. Key features—tunable structures and high internal surface areas—render MOFs as ideal platforms for PFAS removal from aqueous environments. This review critically examines the application of MOFs for PFAS removal and highlights the structural features of MOFs in context of their PFAS removal performances. Factors affecting the adsorption efficiency, regeneration, and application for PFAS detection are extensively discussed while also providing important insights on design strategies for next-generation MOF materials with improved PFAS removal performances.