聚吡咯
吸附
材料科学
化学工程
水处理
磁选
硅酸盐
吸附
镁
复合材料
聚合
化学
聚合物
有机化学
冶金
环境工程
工程类
作者
Yaoyao Weng,Ziqi Jin,Su‐Yuan Xie,Min Zhang
标识
DOI:10.1016/j.colsurfa.2023.132745
摘要
Here we demonstrate the rational design and synthesis of hierarchical Fe3O4@PPy/Mgsilicate composites for applications in water treatments. Through a facile step-by-step strategy, ultrathin Mgsilicate nanosheets (NSs) are grown on polypyrrole (PPy) coated Fe3O4 NPs to achieve the hollow structured Fe3O4@PPy/Mgsilicate composites. This smart design can effectively shorten the mass transfer of molecules, increase the specific surface area, and provide more active sites for adsorption of organic pollutants. Owing to its large specific surface area, hierarchical hollow structures, and the synergistic adsorption effect between the PPy interlayer and magnesium silicate outlayer, the resulting composites exhibited excellent adsorption on Congo Red (CR) with high adsorption capacity of 540.5 mg·g-1. The separation of the composites after sorption can be easily performed with an external magnet because of the multiple Fe3O4 cores. These results indicate that the Fe3O4@PPy/Mgsilicate composites can be employed as a highly promising adsorbent in water treatment.
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