Preparation and adsorption properties of AMPS imprinted Malachite green polymer
MG Imprinted polymer was synthesized by free radical cross-linking polymerization(RAFT)u-sing 2-acrylamy-2-methylpropanesulfonic acid as functional monomer(AMPS),Malachite green(MG)as template molecule and ethylene glycol dimethacrylate(EGDMA)as crosslinking agent.The adsorbent was applied to study the adsorption of cationic dyes in aqueous solution.The effects of temperature,concentra-tion and pH on the adsorption process were investigated.Through experimental investigation,it was found that the adsorption process was more in line with the quasi-second-order kinetic model and consistent with Langmuir adsorption.When the adsorption time was 3 h,the solution temperature was 25℃,the pH was 7,and the dosage of adsorbent was 5 mg,the adsorption capacity of Malachite green by MIP could reach 1 808.91 mg/g.
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