Efficient Detection of 2,6-Dinitrophenol with Silver Nanoparticle-Decorated Chitosan/SrSnO3 Nanocomposites by Differential Pulse Voltammetry

Herein, an ultra-sonication technique followed by a photoreduction technique was implemented to prepare silver nanoparticle-decorated Chitosan/SrSnO3 nanocomposites (Ag-decorated Chitosan/SrSnO3 NCs), and they were successively used as electron-sensing substrates coated on a glassy carbon electrode...

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Bibliographic Details
Published in:Biosensors (Basel) 2022-11, Vol.12 (11), p.976
Main Authors: Faisal, M., Alam, M. M., Ahmed, Jahir, Asiri, Abdullah M., Alsaiari, Mabkhoot, Alruwais, Raja Saad, Madkhali, O., Rahman, Mohammed M., Harraz, Farid A.
Format: Article
Language:English
Subjects:
2,6-dinitrophenol sensor
Ag-decorated Chitosan/SrSnO3 nanocomposites
Carcinogens
Chemical sensors
Chitosan
Contaminants
Decoration
differential pulse voltammetry
Electrochemistry
Electrodes
environmental safety
Glassy carbon
Immunoassay
Nanocomposites
Nanomaterials
Nanoparticles
Optical properties
Parameter sensitivity
Photoreduction
Response time
Sensors
Silver
Sonication
Spectrum analysis
Substrates
ultrasonication
Voltammetry
X ray photoelectron spectroscopy
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Summary:Herein, an ultra-sonication technique followed by a photoreduction technique was implemented to prepare silver nanoparticle-decorated Chitosan/SrSnO3 nanocomposites (Ag-decorated Chitosan/SrSnO3 NCs), and they were successively used as electron-sensing substrates coated on a glassy carbon electrode (GCE) for the development of a 2,6-dinitrophenol (2,6-DNP) efficient electrochemical sensor. The synthesized NCs were characterized in terms of morphology, surface composition, and optical properties using FESEM, TEM, HRTEM, BET, XRD, XPS, FTIR, and UV-vis analysis. Ag-decorated Chitosan/SrSnO3 NC/GCE fabricated with the conducting binder (PEDOT:PSS) was found to analyze 2,6-DNP in a wide detection range (LDR) of 1.5~13.5 µM by applying the differential pulse voltammetry (DPV) approach. The 2,6-DNP sensor parameters, such as sensitivity (54.032 µA µM−1 cm−2), limit of detection (LOD; 0.18 ± 0.01 µM), limit of quantification (LOQ; 0.545 µM) reproducibility, and response time, were found excellent and good results. Additionally, various environmental samples were analyzed and obtained reliable analytical results. Thus, it is the simplest way to develop a sensor probe with newly developed nanocomposite materials for analyzing the carcinogenic contaminants from the environmental effluents by electrochemical approach for the safety of environmental and healthcare fields in a broad scale.
ISSN:2079-6374
2079-6374
DOI:10.3390/bios12110976