分子印迹聚合物
双酚A
光异构化
吸附
单体
介孔材料
偶氮苯
分子印迹
聚合物
选择性吸附
材料科学
聚合
分子识别
化学工程
化学
分子
组合化学
有机化学
选择性
环氧树脂
催化作用
工程类
异构化
作者
Yan Liu,Guoxing Zhong,Zhanchao Liu,Minjia Meng,Fangfang Liu,Liang Ni
标识
DOI:10.1016/j.cej.2016.03.085
摘要
The novel photoresponsive molecularly imprinted polymers (P-MIPs) based on mesoporous carriers were developed for selective recognition and intelligent separation of bisphenol A from the complex samples. P-MIPs were prepared using an azobenzene-containing monomer as the photosensitive monomer by a facile free radical polymerization, combining the stimuli responsive mechanism and imprinting technology. The physical property and structure of newly synthesized materials have been characterized, and their photoisomerization properties were studied. P-MIPs displayed a superior photoresponsive property. Interestingly enough, the template molecules can be easily bound in the recognition sites and released back into the solution under the alternating irradiation. Binding properties of P-MIPs were also further evaluated by batch adsorption experiments. They possessed specific recognition sites and higher affinity for BPA, and the maximal adsorption capacity was 27.06 μmol g−1. Subsequently, the materials were also successfully applied to photocontrolled separation of BPA in real water sample with good recovery, indicating great applicability for selective removal specific analytes from complex environment. The present work mainly provided the deep analysis and useful insights concerning the feasibility of using stimuli responsive imprinted materials in intelligent separation system, which shows tremendous potential to establish a sustainable environment.
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