A novel step-scheme WS2/BiYWO6 heterostructure for enhanced photocatalytic degradation performance towards the degradation of organic pollutant

Constructing S-scheme heterojunction between two semiconductor materials is an effective route to increase the photocatalytic degradation efficiency. Here, a novel S-scheme WS 2 /BiYWO 6 heterojunction photocatalyst was prepared by wet chemical route. At the same time, the photocatalytic degradation performance of the fabricated materials was analyzed by the degradation of Rhodamine B under visible light. Of all prepared WS 2 /BiYWO 6 composites, the 20 wt. % WS 2 loaded WS 2 /BiYWO 6 composite exhibited an enhanced photocatalytic degradation ability than other prepared photocatalysts. Here, O 2 . − and .OH radicals are performing a pivotal role in the Rhodamine B degradation and the optimized composite shows 1.06- and 1.119-times greater photocurrent intensity than pure BiYWO 6 and WS 2 respectively. Also, the synthesized photocatalyst maintains its stability with negligible changes even after three cycles. Thereby, the constructed S-scheme WS 2 /BiYWO 6 heterojunction is a potential material for the wastewater remediation.