Ionic Functionalized Magnetic Porous Polymers as Advanced Materials for High-Efficiency Water Decontamination: Bactericidal and Iodine Adsorption

吸附 人体净化 离子键合 聚合物 化学工程 抗菌活性 化学 材料科学 纳米技术 有机化学 废物管理 细菌 离子 生物 工程类 遗传学
作者
Changqing Miao,Tang Nai-ling,Lin Shi,Shaoyu Wang,Pengpeng Ji,Jian Zhang,Zengyao Wang,Baolong Zhou
出处
期刊:ACS applied polymer materials [American Chemical Society]
卷期号:5 (10): 8679-8692 被引量:2
标识
DOI:10.1021/acsapm.3c01811
摘要

The relentless exploration of environmentally friendly remediation materials for high-efficiency killing of bacteria and capture of radioactive iodine from water is an eternal mutual topic among both academia and industry. Herein, a magnetic ionic porous organic polymer (iFP-POP) featuring sustainable and recyclable capacity was prepared via the “multivariate” strategy combined with subsequent postsynthesis modification and served as an advanced material to purify polluted water. The iFP-POP with an ultrafine magnetic γ-Fe2O3 core and a hierarchical porous polymer layer was prepared via a facile and scalable synthesis strategy, in which γ-Fe2O3 was formed directly during the coupling reaction. The iFP-POP featured abundant binding sites for I2, including highly polar heteroatoms, quaternary ammonium ionic groups, magnetic γ-Fe2O3, and electronegative cyclopentadiene, simultaneously, and presented ultrahigh I2 capture capacities. Notably, iFP-POP recovered easily and rapidly from various solutions by using a magnet, which could be easily regenerated with almost no performance degradation. The unique structure endowed prominent antimicrobial activity to iFP-POP to act as a broad-spectrum bactericide. In vitro assay demonstrated that iFP-POP displays a cation-enhanced photothermal antibacterial effect toward both Gram-positive Staphylococcus aureus (99.93%) and Gram-negative Escherichia coli (94.99%). Furthermore, the encapsulation of I2 endowed iFP-POP with the diffusion antibacterial effect, allowing iFP-POP to act as a recyclable antibacterial material. This work proposes inspiring information for the rational design and controllable fabrication of targeted POP-based materials for environmental pollution management.
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