A novel molecular imprinted polymers (MIP) based on SiO2
-modified multi-walled carbon nanotubes ([email protected]2
) was successfully synthesized by combining a surface molecular imprinting technique with a sol–gel method using phenol as a template molecule, 3-aminopropyltriethoxysilane
as functional monomer and tetraethoxysilicane as a cross-linker in ethanol solution. Scanning electron microcopy (SEM) and X-ray diffraction (XRD) were used to characterize and analysis the structure and morphology of the molecular imprinting composite, and then studied the isotherm adsorption
experiments, selective experiments and dynamic curve. The isotherm adsorption data were further processed with a Scatchard equation to evaluate the adsorption properties of the [email protected]2
-MIP. The results showed that imprinted polymeric layer was successfully grafted to the surface
of MWNTs, the imprinted material had a binding site for the template and apparent maximum amount Q
= 19.902 mg/g, the maximum imprint factor (α
) for the template was 3.484 and the maximum selectivity factor (β
) up to 3.440, so the imprinted materials
could be applied to the separation of trace phenol.
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Molecular Imprinted Polymers;
Multi-Walled Carbon Nanotubes;
Document Type: Research Article
College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
Shanxi Academy of Product Quality Supervision and Inspection, Taiyuan, 030012 Shanxi, China
Publication date: February 1, 2017
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