Abstract
ABSTRACTMagnetic molecularly imprinted polymers (MMIPs) were synthesized for selective recognition and rapid enrichment of indole from a model fuel. The MMIPs were synthesized by precipitation polymerization and a surface molecular imprinting technique, using indole as the template molecule, Fe3O4 nanoparticles as magnetically susceptible components, methylacrylic acid as the functional monomer, and ethylene glycol dimethacrylate as a cross‐linker. The properties of the MMIPs were characterized by Fourier‐transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, vibrating sample magnetometry, and thermogravimetric analysis. The adsorption capacity of indole–molecularly imprinted polymers (MIPs) was 50.25 mg g−1 at 303 K and reached adsorption equilibrium in a short time. Experimental data were modeled with a pseudo–second‐order, Langmuir isotherm model. The selective adsorption performance of MIPs was favorable.
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