Ultrasonic processing of WO nanosheets integrated TiC MXene 2D-2D based heterojunctions with synergistic effects for enhanced water splitting and environmental remediation.

This article describes a straightforward chemical procedure that involves hydrothermal and ultrasonic treatments to create a new 2D/2D ultrathin WO/TiC heterojunctions. The features of the fabricated heterojunctions were characterized and examined by field emission electron microscopy (FESEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), optical absorption spectroscopy (UV-Vis). By photodegrading an organic dye under the influence of visible light, the photocatalytic degradation capabilities of the heterojunctions were also investigated. The performance of WO/TiC was superior to that of bare WO, with a removal rate of 94% and a kinetic rate constant (k) that was approximately 3 times that of WO. The creation of 2D/2D heterojunction was observed to encourage the spatial charge separation and increase the surface reactive sites, to result with the increased photocatalytic activity in WO/TiC heterojunction. The photocurrent values discovered through photoelectrochemical studies further indicated TiC's active function in enhancing water-splitting performance. The impedance analysis examined by an electrochemical method revealed that heterojunctions might be helpful in accelerating the migration of charges quickly to get the outcomes seen.