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Vol. 25 No. 10 (2013): Vol 25 Issue 10

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Preparation of Cyclodextrin-Modified Multi-Walled Carbon Nanotubes Through Acylamide Bond and Its Application in Capturing b-Naphthol from Wastewater

https://doi.org/10.14233/ajchem.2013.OH86
Xiao-Jie Song
School of Materials and Chemical Engineering, Anhui University of Architecture, Hefei 230601 P.R. China
Fan Yang
Department of Chemistry, Anhui Medical University, Hefei 230032, P.R. China
Xian-Wen Wei
College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P.R. China
Xian-Biao Wang
School of Materials and Chemical Engineering, Anhui University of Architecture, Hefei 230601 P.R. China
Chen-Guang She
School of Materials and Chemical Engineering, Anhui University of Architecture, Hefei 230601 P.R. China

Corresponding Author(s) : Xian-Wen Wei

xwwei@mail.ahnu.edu.cn

Asian Journal of Chemistry, Vol. 25 No. 10 (2013): Vol 25 Issue 10

Abstract

Multi-walled carbon nanotubes (MWNTs) were covalently modified with water-soluble b-cyclodextrin (b-CD) through acylamide bond. The products cyclodextrin modified multi-walled carbon nanotubes [MWNTs-CO-NH-(CH2)2-NH-CD] were characterized by 1H NMR, FT-IR spectroscopy and thermogravimetric analysis. The solubility of MWNTs-CO-NH-(CH2)2-NH-CD in water was 336.4 mg/L and no precipitates were observed after 18 months. The fluorescence spectra proved that the MWNTs-CO-NH-(CH2)2-NH-CD as a spectral probe can be used in the molecular recognition of b-naphthol (b-NOH) and the effective association constant (Ka) was calculated 1.27×104 from fluorescence spectra. By centrifugated, the b-naphthol could be separated from MWNTs-CO-NH-(CH2)2-NH-CD, collected and reused circularly. The results showed that the MWNTs-CO-NH-(CH2)2-NH-CD can be used to capture the aromatic pollutant such as b-naphthol from wastewater. This study widened the application of nanosupramolecule materials.

Keywords

Carbon nanotubes Acylamide bond Molecular recognition β-Naphthol β-Cyclodextrin
Song, X.-J., Yang, F., Wei, X.-W., Wang, X.-B., & She, C.-G. (2013). Preparation of Cyclodextrin-Modified Multi-Walled Carbon Nanotubes Through Acylamide Bond and Its Application in Capturing b-Naphthol from Wastewater. Asian Journal of Chemistry, 25(10), 5762–5764. https://doi.org/10.14233/ajchem.2013.OH86
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