Rapid and sensitive detection of selective 1,2-diaminobenzene based on facile hydrothermally prepared doped Co(3)O(4)/Yb(2)O(3) nanoparticles

In this approach, the performance of a newly developed sensor probe coated with low-dimensional Co(3)O(4)/Yb(2)O(3) 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 Co(3)O(4)/Yb(2)O(3) NPs using a 5% Nafion conducting binder onto a glassy carbon electrode (GCE). The facile hydrothermally prepared Co(3)O(4)/Yb(2)O(3) 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(-1)cm(-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.