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Electrochemical sensing of N-phenyl-1-naphthylamine using the MWCNT/β-CD through ‘host scavenger–guest pollutant’ mechanism

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In this report, the synergistic effect of MWCNTs and β-cyclodextrin (β-CD) on glassy carbon electrode (GCE) for the electrochemical sensing of N-Phenylnaphthalen-1-amine (NPN) is demonstrated. The dual role of β-CD (i) as a modifier for MWCNTs, (ii) as scavenger host molecule for entrapping NPN guest molecule is also demoed through material characterization and sensing techniques. The functionalization of β-CD with MWCNTs is corroborated using spectral and XRD techniques. The emplacement of β-CD molecules in between the nanotube walls is affirmed through surface morphological and dispersion investigations. The physically modified β-CD/MWCNTs/GCE electrode possesses good dispersibility, acceptable stability, fast response, selectivity, the sensitivity of 10–6 M, the low detection limit of 15 × 10–9, and high recovery value of 100% in real samples.

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Dr. T. Stalin and G. Vigneshkumar, wish to thank for the financial support of RUSA-Phase 2.0 grant No.F. 24-51/2014-U, Policy (TNMulti-Gen), Dept. of Edn., Govt. of India, Dt. 09.10.2018.

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Correspondence to Stalin Thambusamy.

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Ganesan, V., Munisamy, M., Shanmugasundaram, E. et al. Electrochemical sensing of N-phenyl-1-naphthylamine using the MWCNT/β-CD through ‘host scavenger–guest pollutant’ mechanism. Chem. Pap. 75, 1421–1430 (2021).

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