Highly sensitive electrochemical sensor based on novel Ag Nps/Ppti films for detection of hydrazine

Abstract

Purpose

A novel semiconducting macromolecule-polyperylene tetraamide (PPTI) was first synthesized with a simple method using 3, 4, 9, 10-perylene tetracarboxylic acid (PTCA) and hydrazine hydrate (N2H4).

Design/methodology/approach

The Ag nanoparticle was doped on the surface or inside of the PPTI film to obtain a highly sensitive hydrazine sensor-Ag/PPTI, which was synthesized within one step. The structure of Ag/PPTI was characterized through various techniques such as Fourier transform infrared (FT-IR), thermogravimetric analyzer (TGA), X-ray diffraction (XRD), X-ray photoelectron spectroscopy measurements (XPS) and scanning electronic microscopy (SEM).

Findings

According to cyclic voltammetry results, Ag/PPTI/GCE indicated good electrocatalytic activity toward the oxidation of hydrazine. The amperometric detection of hydrazine was then applied on Ag/PPTI/GCE. It exhibited a wide linear range from 0.05 to 50 µM, a low detection limit (S/N = 3) of 0.05 µM and high sensitivity of 0.45 µA/(µM•cm2).

Originality/value

In authors’ perception, this approach emerges as an effective technique for developing efficient chemical sensors for environmental pollutants.

Citation

Xu, J., Long, X., Zhang, J. and Wu, S. (2023), "Highly sensitive electrochemical sensor based on novel Ag Nps/Ppti films for detection of hydrazine", Pigment & Resin Technology, Vol. 52 No. 4, pp. 413-421. https://doi.org/10.1108/PRT-09-2021-0120