Hydrothermal synthesis and visible-light photocatalytic activities of SnS₂ nanoflakes

Abstract

SnS₂ nanoflakes were successfully synthesized via a simple hydrothermal process. The as-prepared SnS₂ samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), nitrogen adsorption-desorption isotherms, and UV-vis diffuse reflectance spectroscopy (DRS). The photocatalytic activities of the as-prepared SnS₂ nanoflakes under visible light irradiation (λ>420 nm) were evaluated by the degradation of rhodamine B (RhB). The effect of hydrothermal temperatures on the photocatalytic efficiency of as-prepared SnS₂ nanoflakes was investigated. The experimental result showed that SnS₂ nanoflakes synthesized at the temprature of 160° had higher photocatalytic efficiency and good photocatalytic stability.

Keywords

SnS₂ / nanoflakes / hydrothermal synthesis / photocatalytic activities / stability

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