Abstract: A novel magnetic molecularly imprinted polymer (Fe3O4@GO@MIP) based on magnetic graphene coated with silicon dioxide layer was synthesized using heated polymerization technique. The MIP was characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), Fourier transform-infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA) and vibrating sample magnetometer (VSM). The results showed a thermal stability magnetic imprinted layer with the thickness of 55~65 nm was coated steadily on graphene oxide surface. Adsorption performance of the Fe3O4@GO@MIP was investigated combined with magnetic solid phase extraction (M-SPE) and high-performance liquid chromatography (HPLC) technology, and the results indicated the Fe3O4@GO@MIP possessed higher selectivity towards tetrabromobisphenol A with the maximum adsorption capacity of 16.33 mg/g. The magnetic molecularly imprinted composite material was successfully applied to separation and enrichment of tetrabromobisphenol A in environmental water samples combined with high-performance liquid chromatography technology.
Template and target information: tetrabromobisphenol A
Author keywords: molecularly imprinted, magnetic graphene oxide, Tetrabromobisphenol A, Magnetic solid phase extraction