Preparation and properties of phenol imprinted polymers based on silica modified multi-walled carbon nanotubes

Zhihuan Zhao, Jiming Fan, Cui Wang, Bin Cheng, Yongqiang Xue, Shu Yin

    Research output: Contribution to journalArticlepeer-review

    4 Citations (Scopus)

    Abstract

    A novel molecular imprinted polymers (MIP) based on SiO2-modified multi-walled carbon nanotubes (MWNTs@SiO2) 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 MWNTs@SiO2-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 Qmax = 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.

    Original languageEnglish
    Pages (from-to)1504-1509
    Number of pages6
    JournalJournal of Nanoscience and Nanotechnology
    Volume17
    Issue number2
    DOIs
    Publication statusPublished - 2017

    Keywords

    • Adsorption
    • Molecular imprinted polymers
    • Multi-walled carbon nanotubes
    • Phenol
    • Silica modified

    ASJC Scopus subject areas

    • Bioengineering
    • Chemistry(all)
    • Biomedical Engineering
    • Materials Science(all)
    • Condensed Matter Physics

    Fingerprint Dive into the research topics of 'Preparation and properties of phenol imprinted polymers based on silica modified multi-walled carbon nanotubes'. Together they form a unique fingerprint.

    Cite this