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Preparation and Properties of Phenol Imprinted Polymers Based on Silica Modified Multi-Walled Carbon Nanotubes

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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 max = 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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Keywords: Adsorption; Molecular Imprinted Polymers; Multi-Walled Carbon Nanotubes; Phenol; Silica Modified

Document Type: Research Article

Affiliations: 1: College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China 2: Shanxi Academy of Product Quality Supervision and Inspection, Taiyuan, 030012 Shanxi, China

Publication date: February 1, 2017

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  • Journal for Nanoscience and Nanotechnology (JNN) is an international and multidisciplinary peer-reviewed journal with a wide-ranging coverage, consolidating research activities in all areas of nanoscience and nanotechnology into a single and unique reference source. JNN is the first cross-disciplinary journal to publish original full research articles, rapid communications of important new scientific and technological findings, timely state-of-the-art reviews with author's photo and short biography, and current research news encompassing the fundamental and applied research in all disciplines of science, engineering and medicine.
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