Density Functional Theory and Voltammetric Study of Niclosamide Adsorption Behavior On Carbon Nanotubes

Adsorption of niclosamide (NA) on zigzag carbon nanotubes was studied utilizing electrochemical techniques and density functional theory calculations to understand the capability of these carbon nanotubes for detecting NA molecules. Voltammetric results revealed that NA molecules interact with carbo...

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Bibliographic Details
Published in:Journal of electronic materials 2021-03, Vol.50 (3), p.1260-1266
Main Authors: Ghalkhani, Masoumeh, Majidi, Roya, Ghanbari, Mina
Format: Article
Language:English
Subjects:
Adsorption
Carbon
Carbon nanotubes
Characterization and Evaluation of Materials
Chemistry and Materials Science
Density functional theory
Electrodes
Electronic properties
Electronics and Microelectronics
Instrumentation
Materials Science
Niclosamide
Optical and Electronic Materials
Original Research Article
Redox reactions
Solid State Physics
Surface chemistry
Voltammetry
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Summary:Adsorption of niclosamide (NA) on zigzag carbon nanotubes was studied utilizing electrochemical techniques and density functional theory calculations to understand the capability of these carbon nanotubes for detecting NA molecules. Voltammetric results revealed that NA molecules interact with carbon nanotubes and are physically adsorbed on the surface of a working electrode modified with a thin layer of carbon nanotubes. The redox reaction of NA is facilitated at the modified electrode which leads to an increase in peak current. The results show that the electronic properties of zigzag carbon nanotubes with semiconducting properties are sensitive to the presence of NA. The NA adsorption energy on carbon nanotubes is about—33.76 kJ/mol revealing good interaction between target analyte and modifier surface, while the conductivity of the electrode does not change. Hence, these carbon nanotubes are proper for use as sensors for sensitive determination of trace levels of NA concentration.
ISSN:0361-5235
1543-186X
DOI:10.1007/s11664-020-08643-4