Construction of CuYO/g-CN Novel Composite for the Sensitive and Selective Trace-Level Electrochemical Detection of Sulfamethazine in Food and Water Samples.

The most frequently used sulfonamide is sulfamethazine (SMZ) because it is often found in foods made from livestock, which is hazardous for individuals. Here, we have developed an easy, quick, selective, and sensitive analytical technique to efficiently detect SMZ. Recently, transition metal oxides have attracted many researchers for their excellent performance as a promising sensor for SMZ analysis because of their superior redox activity, electrocatalytic activity, electroactive sites, and electron transfer properties.

Fabrication of Carbon Nanofiber Incorporated with CuWO for Sensitive Electrochemical Detection of 4-Nitrotoluene in Water Samples.

In the current work, copper tungsten oxide (CuWO) nanoparticles are incorporated with carbon nanofiber (CNF) to form CNF/CuWO nanocomposite through a facile hydrothermal method. The prepared CNF/CuWO composite was applied to the electrochemical detection of hazardous organic pollutants of 4-nitrotoluene (4-NT). The well-defined CNF/CuWO nanocomposite is used as a modifier of glassy carbon electrode (GCE) to form CuWO/CNF/GCE electrode for the detection of 4-NT.