β-环糊精功能化磁性复合微球的制备及其对双酚A的吸附

Preparation ofβ-cyclodextrin functionalized magnetic composite microspheres and its adsorption for bisphenol A

通过种子乳液聚合结合开环反应制备了β-环糊精(β-CD)功能化磁性复合微球Fe3O4@PG-CD。通过红外光谱(FT-IR)、透射电镜(TEM)、动态光散射仪(DLS)、热重分析(TGA)仪对Fe3O4@PG-CD进行了系统的表征。考察了Fe3O4@PG-CD对模型环境污染物双酚A(BPA)的吸附性能,结果表明,Fe3O4@PG-CD对BPA具有良好的吸附去除能力,其饱和吸附容量为39.68mg/g。所开发的磁性复合微球材料可望成为一种新型吸附分离载体。

β-cyclodextrin （β-CD） functionalized magnetic composite microspheres （FeaO4 @PG-CD） were pre pared by the combination of seeded emulsion polymerization and subsequent ring-opening reaction of epoxy groups. The as-prepared Fe304@PG-CD are systematically characterized by infrared （IR） instrument, trans- mission electron microscope （TEM）, dynamic light scattering （DLS） instrument, thermogravimetric analysis （TGA） instrument. Moreover, the adsorption property of Fe304 @PG-CD for model of environmental pollu- tants, biphenol A （BPA） was also investigated. The experimental results showed that the FeaO4@PG CD have an excellent adsorption capacity for BPA, the maximum adsorption capacity was 39.68 mg/g. The magnetic composite microspheres developed in this study could serve as a novel separation carrier.