Abstract: One kind of built-in silica adsorbent, which has high adsorption selectivity to rutin, was synthesized using molecular imprinted technology by the following steps: synthesis of precursor from the reaction between water soluble rutin (as template molecule) and the functional monomer chloropropyltriethoxysilane, co-hydrolysis of the precursor and tetraethoxysilane (TEOS), sol-gel aging process, and removal of template molecules. The results of adsorption experiment show that this adsorbent has a high adsorption capacity to rutin, and good adsorption selectivity to rutin even under the interference of flavone with similar structure. TEM photos suggest that nanocaves corresponding to rutin were formed inside the adsorbent, while FTIR detects that new bond was generated during the recognition process
Template and target information: rutin
Author keywords: Molecularly imprinted technology (MIT), Rutin, selective adsorption, Silica adsorbent

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