介孔材料
废水
水溶液中的金属离子
聚合物
金属
化学工程
离子
化学
无机化学
材料科学
催化作用
有机化学
环境科学
环境工程
工程类
作者
Dongping Tao,Yadan Tang,Bingfang Zou,Yongqiang Wang
出处
期刊:Langmuir
[American Chemical Society]
日期:2024-01-26
标识
DOI:10.1021/acs.langmuir.3c03577
摘要
As an advanced water purification technology, magnetic nanoabsorbents are highly attractive for their sustainability, robustness, and energy efficiency. However, magnetic responsiveness and high adsorptive capacity are irreconcilable during the design and synthesis of a high-performance magnetic nanoabsorbent. Here, we address this issue by designing a kind of mesoporous magnetic polymer hybrid microspheres, where functional polymers such as polyrhodanine and polypyrrole were attached to the pore walls in the interior of mesoporous Fe3O4 microspheres through in situ polymerization. Due to the integrated large saturation magnetic moment, porous structure, and dense polymer layer, the mesoporous magnetic polymer hybrid microspheres demonstrated fast magnetic responsiveness, excellent recycling performance, and high adsorption capacities toward Pb(II) ions (189 mg g–1) for polyrhodanine and Cr(VI) ions (199 mg g–1) for polypyrrole. Furthermore, their potential application in wastewater treatment was verified by a self-made magnetic separation column, where the designed magnetic nanoabsorbent exhibits significant advantages including rapid separation of heavy metal ions and high outflow. This study provided a promising magnetic polymer hybrid nanoabsorbent for realizing efficient removal of heavy metal ions from wastewater.
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