微塑料
聚苯乙烯
聚氯乙烯
吸附
降级(电信)
聚对苯二甲酸乙二醇酯
聚乙烯
聚丙烯
化学工程
化学
纳米颗粒
环境化学
聚合物
材料科学
有机化学
复合材料
工程类
电信
计算机科学
作者
Mohamad Zandieh,Juewen Liu
标识
DOI:10.1002/anie.202212013
摘要
Removal and degradation of microplastics are often carried out separately. In this work, hydrophilic bare Fe3 O4 nanoaggregates allowed efficient removal of the most common microplastics including high-density polyethylene, polypropylene, polyvinyl chloride, polystyrene, and polyethylene terephthalate. Full extraction was achieved using Fe3 O4 at 1 % of the mass of microplastics. Hydrogen bonding is the main force for the adsorption of Fe3 O4 . Unlike the more commonly used hydrophobically modified Fe3 O4 nanoparticles, the bare Fe3 O4 benefitted from the peroxidase-like activity of its exposed surface, enabling further catalytic degradation of microplastics with nearly 100 % efficiency and easy recovery of the Fe3 O4 .
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