聚丙烯腈
吸附
水溶液中的金属离子
膜
朗缪尔吸附模型
水处理
过滤(数学)
化学工程
壳聚糖
化学
饮用水净化
静电纺丝
材料科学
核化学
金属
环境工程
聚合物
有机化学
工程类
统计
生物化学
数学
作者
Qiu-Hui Hu,Deyu Tang,Ya-li Xiang,Xiao Chen,Jun Lin,Qinghan Zhou
标识
DOI:10.1016/j.ijbiomac.2023.124620
摘要
Water pollution has become one of the most concerned environmental issues on the worldwide scale. Due to the harmfulness of the heavy metal ions and microorganisms in wastewater, novel filtration membranes for water treatment are expected to simultaneously clear these pollutants. Herein, the electro-spun polyacrylonitrile (PAN) based magnetic ion-imprinted membrane (MIIM) were fabricated to achieve both selective removal of Pb(II) ions and excellent antibacterial efficiency. The competitive removal experiments showed that the MIIM displayed efficiently selective removal of Pb(II) (45.4 mg·g-1). Pseudo-second-order mode and Langmuir isotherm equation is well matched with the equilibrium adsorption. The MIIM showed sustained removal performance (~79.0 %) against Pb(II) ions after 7 adsorption-desorption cycles with negligible Fe ions loss of 7.3 %. Moreover, the MIIM exhibited excellent antibacterial properties that >90 % of E. coli and S. aureus were killed by the MIIM. In conclusion, the MIIM provides a novel technological platform for integration of multi-function with selective metal ions removal, excellent cycling reusability, and enhanced antibacterial fouling property, which can be potentially utilized as a promising adsorbent in actual treatment of polluted water.
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