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$\beta$-Cyclodextrin Functionalization of Activated Carbon-Carbon Nanotube Composites and Supramolecular Recognition of Ascorbic acid
New Phys.: Sae Mulli
Published online December 24, 2018;  
© 2018 New Physics: Sae Mulli.

Aryal Krishna Prasad, Hae Kyung Jeong*
Received November 16, 2018; Accepted December 21, 2018.
Activated carbon–carbon nanotube (AC-CNT) and $\beta$-cyclodextrin–activated carbon–carbon nanotube ($\beta$CD-AC-CNT) composites are synthesized successfully by a simple chemical method and characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy and thermogravimetric analysis. The electrochemical supramolecular recognition capability of two composites was studied by using a cyclic voltammetry, a differential pulse voltammetry, and an electrochemical impedance spectroscopy for ascorbic acid as the biomolecule. More significantly, differential pulse voltammetry showed that the $\beta$CD-AC-CNT composite exhibits high supramolecular recognition and enrichment capability for ascorbic acid and consequently displayed excellent electrochemical response to the probe molecule.

February 2019, 69 (2)
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