Abstract
In this approach, this research article has been executed to the development of a reliable selective 1,4-dioxane electrochemical sensor using hydrothermally prepared ZnO/GO nanocomposites (NCs) decorated GCE (glassy carbon electrode) by facile I-V electrochemical method. The obtained current data from electrochemical (I-V) analysis were plotted against the corresponding concentration from the calibration curve. It is found linear in the large concentration range (0.1 nM-0.01 mM), which is defined as linear dynamic range (LDR) of 1,4-dioxane with fabricated ZnO/GO NCs/GCE sensor. By considering the slope of LDR over the active surface area of GCE (0.0316 cm(2)), the sensor sensitivity parameter (7.6899 mu A mu M-1 cm(-2)) is estimated and found high compared to published reports. At a signal/noise (S/N = 3), the lowest limit (LOD; 12.34 +/- 0.62 pM) of the 1,4-dioxane sensor is also calculated. Besides this, the sensor reliability is evaluated by testing reproducibility, response time, and long-time performing of 1,4-dioxane chemical detection with ZnO/GO NCs/GCE electrode, which exhibited good results due to its high electro-catalytic activity in the sensing measurement. In addition, the sensor's real-time applicability has been investigated by measuring the environmental and extracted samples by using the recovery method, which found as acceptable with outstanding results. Thus, this potential way to the development of reliable sensors would be the significant approach in sensor science and technology fields. It introduced a new route for the development of selective chemical sensor probe with different doped nanocomposite materials using electrochemical approach for the safety of environmental and ecological fields in a broad scale.