纳米复合材料
膜
吸附
化学工程
材料科学
表面改性
水溶液
选择性
分子印迹
纳米技术
选择性吸附
环境友好型
多孔性
化学
有机化学
复合材料
催化作用
工程类
生物
生物化学
生态学
作者
Yilin Wu,Xinlin Liu,Jiuyun Cui,Minjia Meng,Jiangdong Dai,Chunxiang Li,Yongsheng Yan
标识
DOI:10.1016/j.jhazmat.2016.10.030
摘要
Significant efforts have been focused on the functionalization and simplification of membrane-associated molecularly imprinted materials, which can rapidly recognize and separate specific compound. However, issues such as low permselectivity and unstable composite structures are restricting it from developing stage to a higher level. In this work, with the bioinspired design of polydopamine (pDA)-assisted inorganic film, we present a novel molecular imprinting strategy to integrate multilevel nanocomposites (Ag/pDA) into the porous membrane structure. The molecularly imprinted nanocomposite membranes were then obtained through an in situ photoinitiated ATRP method by using tetracycline (TC) as the template molecule. Importantly, attributing to the formation of the Ag/pDA-based TC-imprinted layers, largely enhance TC-rebinding capacity (35.41mg/g), adsorption selectivity and structural stability (still maintained 92.1% of the maximum adsorption capacity after 10 cycling operations) could been easily achieved. Moreover, largely enhanced permselectivity performance toward template molecule (the permeability factor β values were also more than 5.95) was also obtained. Finally, all synthesis methods were conducted in aqueous solution at ambient temperature, which was environmental friendly for scaling up without causing pollution.
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