Abstract
In this approach, the performance of a newly developed sensor probe coated with low-dimensional Co3O4/Yb2O3 nanoparticles (NPs) in rapidly detecting 1,2-diaminobenzene was evaluated by an electrochemical technique. The sensor probe was fabricated by depositing a very thin layer consisting of synthesized Co3O4/Yb2O3 NPs using a 5% Nafion conducting binder onto a glassy carbon electrode (GCE). The facile hydrothermally prepared Co3O4/Yb2O3 NPs were totally characterized by conventional methods such as FTIR, UV-vis, TEM, XPS, EDS, and XRD analyses. The fabricated chemical sensor probe was found to exhibit long-term activity, stability in electrochemical response, good sensitivity (5.6962 μAμM-1cm-2), lowest detection limit (0.02±0.001 pM), and broad linear dynamic range (0.1 pM to 0.01 mM). The observed performances suggest that the newly introduced sensor could play an efficient role in detecting 1,2-diaminobenzene especially in healthcare and environmental applications on a broad scale.
Highlights
1,2-diamino benzene (1,2-DAB) is an organic amine and industrially very important chemical intermediate
The performance of a newly developed sensor probe coated with lowdimensional Co3O4/Yb2O3 nanoparticles (NPs) in rapidly detecting 1,2-diaminobenzene was evaluated by an electrochemical technique
The sensor probe was fabricated by depositing a very thin layer consisting of synthesized Co3O4/Yb2O3 NPs using a 5% Nafion conducting binder onto a glassy carbon electrode (GCE)
Summary
1,2-diamino benzene (1,2-DAB) is an organic amine and industrially very important chemical intermediate. The technical advantages of these methods include good sensitivity, high selectivity, and long-term stability. The slurry of Co3O4/Yb2O3 NPs in ethanol is prepared and deposited a very thin layer onto GCE with an additive of 5% Nafion binder. This fabricated sensor is applied to detect selective 1,2 DAB through the implementation of a reliable electrochemical method by using the electrochemical approach. It is worth mentioning that the development of Co3O4/Yb2O3 NPs based GCE sensor seems to be promising technology especially for detecting toxicant to the safety of the environment
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