To date, molecularly imprinted polymers (MIPs) have been developed as biosensors, separation media and affinity supports for the recognition of target molecules. The main limitations in traditional molecular imprinting technology are its low selectivity, low response kinetics and large template size. So, the surface molecular imprinting technique, which improves the binding rate between recognition sites and imprinted molecules and the adsorption efficiency of the molecular imprinted materials by designing the molecular recognition sites on the surface of imprinted materials, has been explored by grafting a very thin polymer film onto a support, such as polymer beads , silica-based materials and carbon nanotubes. Carbon microspheres (CMSs) are promising for surface imprinting because of their large surface area, good mechanical and thermal stabilities. In this paper, MIPs on the surface of CMSs, which were modified by acid and silylation treatment, were obtained by using dibenzothiophene as template, methacrylic acid (MAA) as functional monomer, ethylene glycol dimethacrylate (EDMA) as cross-linking agent and azoisobutyronitrile (AIBN) as initiator. This novel surface molecular imprinted material with priority recognition and adsorption is of importance for deep desulfurization of oils.
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