Abstract: In this paper, methyl orange molecular imprinting composite microspheres were prepared with trimethylol propane triacrylate (TRIM) cross-linked polymethacrylic acid (PMAA) microspheres (PMAA-TRIM), cation exchange resin, anion exchange resin, and hydroxyapatite /calcium alginate microspheres as a carrier, using KH-570 and KH-550 silane as functional monomer. The adsorption properties, imprinted efficiency, recognization properties and reuse properties of methyl orange imprinted composite microspheres were researched. The results show that the imprinted composite microspheres exhibited faster adsorption rate and larger amount of adsorption capacity for their template. The imprinted composite microspheres prepared using PMAA TRIM microspheres, cation exchange resin and anion exchange resin exhibited good recycling performance
Template and target information: methyl orange
Author keywords: Composite microspheres, Methyl orange, molecular imprinting, recognition performance, Reusability

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