Preparation and Adsorption Properties of Rhodamine B Molecularly Imprinted Polymers

doi:10.7506/spkx1002-6630-201406003

Abstract

Abstract:

Molecularly imprinted polymers (MIP) were prepared by bulk polymerization using rhodamine B (RhB) as the
template, methacrylic acid (MAA) as the functional monomer, trimethylolpropane trimethacrylate (TRIM) as the crosslinker
and acetonitrile as the porogen. Adsorption experiments were carried out on the MIP to select the optimum monomer and
porogen amount. Scanning electron microscopy and infrared spectrometry were employed to observe the morphology of
the polymers. Equilibrium adsorption and selectivity experiments were performed. The results revealed that the imprinted
polymers showed better adsorption properties and selective recognition capacity. The maximum adsorption capacity was
370.49 μg/g at a concentration of 15 μg/mL. The equilibrium was reached in 150 minutes.

Key words: molecularly imprinted polymers, rhodamine B, adsorption isotherm

CLC Number:

TQ 317.4

JI Shu-juan, LIU Xiu-ying, YU Ying-chao, ZHANG Xuan, ZHOU Qian. Preparation and Adsorption Properties of Rhodamine B Molecularly Imprinted Polymers[J]. FOOD SCIENCE, 2014, 35(6): 12-16.

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