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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
chemistry
Electrochemical Sensors Based on Metal-Organic Framework and Conductive Polymer HKUST-1@PANI for High-Performance Detection of Lead Ions
Journal of the Electrochemical Society, Volume 170, No. 11, Article 117504, Year 2023
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Description
In this research a highly microporous Cu-BTC (denoted as HKUST-1) was synthesized using a simple and rapid synthesis room temperature method. The as-prepared HKUST-1 obtained at room temperature for 10 min exhibited a very high Brunauer-Emmett-Teller (BET) surface area of 1875 m2/g, pore volume (Vp) of 0.789 cm3/g, and average micropore size of 7.84 Å. Based on this product, we successfully fabricated a conductive electrochemical sensor HKUST-1@PANI by polymerizing a conductive polyaniline polymer (PANI) around the metal-organic framework HKUST-1. Fourier transform infrared (FTIR) spectra, X-ray diffraction pattern (XRD) support the formation of HKUST-1@PANI. Furthermore, scanning electron microscopy (SEM) studies confirmed that PANI uniformly covered the surface of HKUST-1. We used the resulting material to build a new electrochemical sensor for the reliable detection of lead ions. The electrochemical response of the developed sensor towards ions was evaluated using differential pulse voltammetry (DPV). Under optimized conditions, linear detection was reproducible over the Pb2+ concentration range from 0.005 to 50 μM with a minimum detection limit of 5 nM. The sensor is practically usable in a wide variety of environments, as it is virtually immune to interference from other coexisting ions. © 2023 The Electrochemical Society (“ECS”). Published on behalf of ECS by IOP Publishing Limited.
Authors & Co-Authors
Missaoui, Nadhem
Tunisia, Monastir
Université de Monastir
Barhoumi, Houcine
Tunisia, Monastir
Université de Monastir
Crapnell, Robert D.
United Kingdom, Manchester
Manchester Metropolitan University
Jaffrézic-Renault, Nicole J.
France, Lyon
Université de Lyon
Banks, Craig E.
United Kingdom, Manchester
Manchester Metropolitan University
Kahri, H.
Tunisia, Monastir
Université de Monastir
Statistics
Citations: 1
Authors: 6
Affiliations: 3
Identifiers
Doi:
10.1149/1945-7111/ad050c
ISSN:
00134651