Novel Magnetic Halloysite based-Molecularly Imprinted Polymer for Sunset Yellow Removal from Aqueous Solutions

A novel magnetic Molecularly Imprinted Polymer (MMIP) was synthesized for Sunset Yellow (SY) dye removal from aqueous solution. The magnetic halloysite nanotubes (MHNTs) were prepared by co-precipitation approach and the obtained nanocomposite was employed as surface polymerization support. Vibrating sample magnetometer (VSM) and transmission electron microscopy (TEM) were employed for characterization of the fabricated MMIP. The obtained nanoadsorbents revealed selectivity of ۱.۴۷ toward its own template, SY dye, in comparison to brilliant blue in dyes mixture solution. Regarding to the high correlation coefficient (R۲ ≥ ۰.۹۹), the experimental data was well-fitted by pseudo-second order adsorption kinetic model representing that chemisorption would be a rate controlling step.

کلیدواژه ها:

Molecularly imprinted polymer ، Sunset yellow ، Magnetic halloysite nanotubes ، Pseudo-second order kinetics.