Semiconductor-based photocatalysis has dramatically increased interest in the field of photocatalysis because of its ability to directly utilize solar energy into fuels and for the degradation of various pollutants. However, the photocatalytic performance of semiconductor-based photocatalysts is still lower due to the quick recombination photogenerated electron-hole pairs and low visible light utilization. Therefore, numerous efforts have been made to solve these complications. Particularly, co-catalystssupportedsemiconductorshavebeen extensively applied in designing and developing highly effective composite photocatalysts for hydrogen photocatalytic application. WS_2 has attracted enormous attention in photocatalysis due to its unusual properties, such as enhancing visible light harvesting, charge transfer dynamics, and surface reactions of a photocatalytic system. In this review, we begin by describing synthesis route, different morphologies, and brief sketch properties of WS_2. A brief discussion of the WS_2 supported metal oxide, metal sulphide, carbon-based materials, silver based materials, and bismuth-based materials photocatalysts is then provided.This review may offer motivation for designing and fabricating novel and efficient WS_2 based composite photocatalysts for highly efficient photocatalytic applications.
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