Preparation of Acid Dye Molecule Surface-Imprinted Material for Effective Removal of Acid Dyes from Water and Study on its Molecule Recognition Performance

Abstract

An acid dye molecule surface-imprinted material was prepared successfully for the dye removal from water by using a novel molecular surface-imprinting technique. The cationic monomer acryloyloxyethyl trimethyl ammonium chloride (DAC) was used as functional monomer, and sunset yellow was used as a model compound of water-soluble acid dyes. In the aqueous solution, DAC molecules were combined around sunset yellow molecules via electrostatic interaction. The graft/cross-linking copolymerization of DAC and the crosslinker on SiO 2 particles was initiated by a surface-initiating system of -NH 2 /S 2 O 8 2-, resulting in the sunset yellow molecule surface-imprinted material MIP-PDAC/SiO 2 . MIP-PDAC/SiO 2 possesses special recognition property for sunset yellow.

Synthesis of molecularly imprinted polymer nanoparticles for the fast and highly selective adsorption of sunset yellow

“…Hence, the choice of functional monomer is very important for the property of MIPs. Various functional monomers such as methacrylic acid , vinyl pyridine , acrylamide , ionic liquid , quaternary ammonium salt , have been used to prepare MIPs for the removal of azo dyes from wastewater.…”