Interfacial engineering of a multijunctional InO/WO@TiNT S-scheme photocatalyst with enhanced photoelectrochemical properties.

Achieving high photoelectrochemical conversion efficiency requires the logical layout of a composite photocatalyst with optimal charge separation and transfer with ideal light harvesting capabilities to enhance the photocatalytic performance and the degradation rate towards organic pollutants. Herein, a novel InO/WO@TiNT S-scheme heterojunction was successfully synthesized and confirmed through valence band VB-XPS and Mott Schottky combined analysis. The formed MXene-doped InO/WO@TiNT S-scheme significantly enhances the charge flow and spatial separation with an improved oxidation and reduction ability.