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

Vigneshkumar Ganesan, Maniyazagan Munisamy, Esakkimuthu Shanmugasundaram, Krishnamoorthy Sivakumar, Senthilvelan Sambandam, Paramasivaganesh Kumaraswamy, and Stalin Thambusamy

Department of Industrial Chemistry, Alagappa University, Karaikudi, India

 

E-mail: drstalin76@gmail.com

Received: 22 April 2020  Accepted: 15 October 2020

Abstract:

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.

Keywords: Multiwall carbon nanotubes; β-cyclodextrin; N-phenyl-1-naphthylamine; Electrochemical sensor

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-020-01394-w

 

Chemical Papers 75 (4) 1421–1430 (2021)

Thursday, May 19, 2022

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