Fabrication of bifunctional multiwalled carbon nanotubes@palygorskite nanofiber nanocomposite for electrochemical determination of niclosamide

Herein, we reported a novel niclosamide (NA) electrochemical sensor based on the multifunctional nanocomposite of palygorskite (Pal) nanofibers and bifunctional multiwalled carbon nanotubes (BMCN) with graphitization and carboxylation. For the BMCN@Pal nanocomposite, BMCN with one-dimensional nanotu...

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Bibliographic Details
Published in:Ionics 2023-08, Vol.29 (8), p.3373-3384
Main Authors: Wan, Xiuying, Zhao, Mengyuan, Li, Fang, Zhu, Gan, Zhao, Hongyuan
Format: Article
Language:English
Subjects:
Carbon
Carboxylation
Chemical sensors
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Drinking water
Electrical resistivity
Electrochemical analysis
Electrochemistry
Energy Storage
Fibrous structure
Graphitization
Multi wall carbon nanotubes
Nanocomposites
Nanofibers
Niclosamide
Optical and Electronic Materials
Renewable and Green Energy
Reproducibility
Sensors
Surface stability
Water sampling
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Summary:Herein, we reported a novel niclosamide (NA) electrochemical sensor based on the multifunctional nanocomposite of palygorskite (Pal) nanofibers and bifunctional multiwalled carbon nanotubes (BMCN) with graphitization and carboxylation. For the BMCN@Pal nanocomposite, BMCN with one-dimensional nanotube structure possessed excellent electrical conductivity and good dispersion performance due to the graphitization and carboxylation; Pal with fibrous structure possessed good electrocatalytic activity due to the high absorption capability, large specific surface area, and prominent stability. Moreover, BMCN with interconnected carbon conductive network promoted the uniform distribution of Pal nanofibers and compensated for the poor electrical conductivity of Pal nanofibers. Thanks to the functional combination of BMCN and Pal, the BMCN@Pal/GCE sensor exhibited good NA electrochemical detection performance with low limit of detection of 7.88 nM in linear NA concentration of 0.01–10 μM. The BMCN@Pal/GCE sensor exhibited good repeatability and reproducibility. In addition, a good practical feasibility can be achieved at the BMCN@Pal/GCE sensor for the detection of NA in tap water and pond water samples (recovery rate: 96.2–100.3%, relative standard deviation: 2.53–4.97).
ISSN:0947-7047
1862-0760
DOI:10.1007/s11581-023-04964-6