Construction of an electrochemical sensor towards environmental hazardous 4-nitrophenol based on Nd(OH)-embedded VSe nanocomposite.

The toxicity of 4-nitrophenol (4-NP) is one of the most common threats to the environment; therefore, developing a simple and sensitive analytical method to detect 4-NP is crucial. In this study, we prepared the Nd(OH)/VSe nanocomposite using the simple hydrothermally assisted ultrasonication method and it was used to detect the 4-NP. Different characterization techniques were used to investigate the morphological and chemical compositions of Nd(OH)/VSe nanocomposite.

Electrochemical determination of quercetin using glassy carbon electrode modified with WS/GdCoO nanocomposite.

A WS/GdCoO nanocomposite was successfully prepared using hydrothermal-assisted synthesis. Our prepared WS/GdCoO nanocomposite was fabricated on a glassy carbon electrode (GCE) for the detection of quercetin (QCT). The WS/GdCoO nanomaterial was characterized by powder XRD, micro-Raman, FT-IR, XPS, FE-SEM, and HR-TEM, which proved that WS nanoplates were finely dispersed on the surface of the GdCoO nanoflakes.