Chem. J. Chinese Universities ›› 2016, Vol. 37 ›› Issue (8): 1551.doi: 10.7503/cjcu20160248

• Polymer Chemistry • Previous Articles     Next Articles

Preparation and Properties of Surface Imprinted Magnetic Cellulose Microsphere with Highly Selective Adsorption

GE Hao, HUANG Hailong, XU Min*()   

  1. School of Physics and Materials Science, Shanghai Key Laboratory of Magnetic Resonance,East China Normal University, Shanghai 200062, China
  • Received:2016-04-18 Online:2016-07-19 Published:2016-07-19
  • Contact: XU Min E-mail:xumin@phy.ecnu.edu.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China(Nos.51273067, 21544003)

Abstract:

Molecularly imprinted magnetic composite microspheres(MIP-MCM) were prepared by a surface functional monomer-directing system. Cellulose and Fe3O4 composite microsphere was the core and then was coated a layer of MIP on the surface. Fourier transform Infrared spectra(FTIR), X-ray powder diffraction(XRD), vibrating sample magnetometry(VSM) methods were used to characterize the structure of MIP-MCM. In this article, Rhodamine B(RhB) was chosen as the template molecule. The adsorption abilities of MIP-MCM toward RhB were studied through adsorption kinetics and adsorption thermodynamics. The adsorption kinetics curves met pseudo-second-order model more. The adsorption isotherms could be described by both Langmuir and Freundlich isotherm models. The maximum adsorption amount was calculated to be 0.542 mg/mg, much higher than the common adsorbents. MIP-MCM was also adsorption-selective to RhB with highly regenerate and kept stable in a wild pH and temperature range. In brief, MIP-MCM is very potential in the application of removal of dye and sewage treatment.

Key words: Cellulose, Fe3O4, Molecularly imprinted polymer, Rhodamine B, Selective adsorption

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