Dummy template surface molecularly imprinted polymers (DMIP) were prepared by using nicotinamide, nonpoisonous imidacloprid and acetamiprid structural analogue as dummy template molecule, α-methyl acrylic acid (MAA) as functional monomer, and ethylene glycol dimethacrylate (EGDMA) as the cross-linking agent. On the basis of single-factor experiment, response surface method was used to optimize the preparation of DMIP. The morphology of the optimized DMIP was characterized by scanning electron microscopy (SEM), and the adsorption properties of DMIP for imidacloprid and acetamiprid were studied. The results showed that the optimized DMIP exhibited high adsorption capacity and selectivity for imidacloprid and acetamiprid. The maximum adsorption capacity of DMIP for imidacloprid and acetamiprid was 41.73 mg/g and 21.95 mg/g, respectively. The removal efficiency of imidacloprid and acetamiprid from tea polyphenols was 96.2% and 95.6%, respectively. The obtained DMIP exhibit a good application prospect for the removal of imidacloprid and acetamiprid in the production process of tea polyphenols and other extracts.
CHEN Jingyu
,
HUANG Xin
,
WANG Li
,
WANG Hongxin
. Synthesis of molecularly imprinted polymers of virtual template surface andits application on simultaneously remove imidacloprid and acetamiprid[J]. Food and Fermentation Industries, 2020
, 46(5)
: 91
-97
.
DOI: 10.13995/j.cnki.11-1802/ts.022775
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