One-step hydrothermal synthesis of flowerlike MoS2/CdS heterostructures for enhanced visible-light photocatalytic activities

摘要

Herein, we report flowerlike MoS2/CdS heterostructures prepared by a simple hydrothermal method. The structure and morphology of products are characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The experimental results indicate that the as-prepared products show a flowerlike nanostructure with size at 800 nm. This flowerlike nanostructure has a large surface area and may provide a better anchoring surface for adsorbing molecules. Very importantly, as-prepared flowerlike MoS2/CdS heterostructures exhibit excellent performance in adsorption and a higher photocatalytic activity for degrading methylene blue under the excitation of visible light than pure CdS or pure MoS2. These characteristics enable this novel flowerlike heterostructural nanomaterial to perform potential applications in water treatment, degradation of dye pollutants, and environmental cleaning.