Voltametric quantification of 2-nitrophenol using a glassy carbon electrode ‎modified with metal–organic frameworks

Kiasadr, Abolfazl; Sajjadi, S. Maryam; Baghayeri ‎, Mehdi

doi:10.22036/cr.2025.491123.1263

Voltametric quantification of 2-nitrophenol using a glassy carbon electrode ‎modified with metal–organic frameworks

Document Type : Original Article

Authors

Abolfazl Kiasadr ¹

S. Maryam Sajjadi ²

Mehdi Baghayeri ‎ ³

¹ Semnan University

² Lamerd Higher Education Center- Shiraz University of Technology

³ Hakim Sabzevari University

10.22036/cr.2025.491123.1263

Abstract

In this study, a novel modified electrode was synthesized based on Metal organic framework ‎Nickel (Ni-mof74) and β-cyclodextrin, which applied for the selective determination of 2-‎nitrophenol (2-NP), as an important known environmental pollutant by square wave anodic ‎stripping voltammetry (SWASV) method and The synthesized nano composite was ‎characterized by Field emission scanning electron microscopy (FE-SEM), Energy dispersive ‎X-ray spectroscopy (EDX), Fourier-transform infrared spectroscopy. The optimum ‎experimental conditions for the determination of 2-nitrophenol were obtained with one at a ‎time Method as listed: Phosphate Buffer Solution Preparation, pH = 9.40, scan rate = 100 ‎mV/s, pulse, amplitude = 500 mV, time=240 sec. The current response of the modified ‎electrode was linear with the 2-NP concentration in the range from 7 to 180 ppm. The plot of ‎peak current vs. concentration exhibits a dual linear region ranging from 7.0 to 100.0 ppm ‎with R2 = 0.9897 and 100.0 to 180.0 ppm with R2 = 0/9974. ‎

Keywords

Modified glassy carbon electrode

Metal Organi Framework

َAnodic stripping ‎voltammetry

2-nitrophenol , Square-wave Voltametry

Subjects