分子印迹聚合物
双酚A
吸附
萃取(化学)
固相萃取
双酚
磁性纳米粒子
化学
色谱法
分子印迹
自来水
磁选
单体
纳米颗粒
材料科学
聚合物
选择性
纳米技术
有机化学
环境工程
环境科学
环氧树脂
冶金
催化作用
作者
Zhenkun Lin,Yanfang Zhang,Yu Su,Jinxia Qi,Yinhang Jia,Huang Chang-jiang,Qian Dong
标识
DOI:10.1002/jssc.201701162
摘要
Abstract One‐monomer molecularly imprinted magnetic nanoparticles were prepared as adsorbents for selective extraction of bisphenol A from water in this study. A single bi‐functional monomer was adopted for preparation of the molecularly imprinted polymer, avoiding the tedious trial‐and‐error optimizations as traditional strategy. Moreover, bisphenol F was used as the dummy template for bisphenol A to avoid the interference from residual template molecules. These nanoparticles showed not only large adsorption capacity and good selectivity to the bisphenol A but also outstanding magnetic response performance. Furthermore, they were successfully used as magnetic solid‐phase extraction adsorbents of bisphenol A from various water samples, including tap water, river water, and seawater. The developed method was found to be much more efficient, convenient, and economical for selective extraction of bisphenol A compared with the traditional solid‐phase extraction. Separation of these nanoparticles can be easily achieved with an external magnetic field, and the optimized adsorption time was only 15 min. The recoveries of bisphenol A in different water samples ranged from 85.38 to 93.75%, with relative standard deviation lower than 7.47%. These results showed that one‐monomer molecularly imprinted magnetic nanoparticles had the potential to be popular adsorbents for selective extraction of pollutants from water.
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