Constructing 2D/2D ultrathin Ti 3 C 2 /SnS 2 Schottky heterojunctions toward efficient tetracycline degradation.

In this article, a novel 2D/2D ultrathin Ti ₃ C ₂ /SnS ₂ Schottky heterojunctions have been prepared via a facile hydrothermal process. The properties of the heterojunction were fully characterized. The photocatalytic degradation performance of composites was examined by photo-degradation of tetracycline hydrochloride (TC-HCL) under visible light irradiation. Compared with single SnS ₂ , 3% Ti ₃ C ₂ /SnS ₂ displayed the better performance, the removal rate of TC-HCL reached 87.7% and the kinetic rate constant (k) of the optimal 3% Ti ₃ C ₂ /SnS ₂ composite was about 2.7 times of that of bare SnS ₂ . The improved photocatalytic activity of Ti ₃ C ₂ /SnS ₂ is ascribed to the formation of 2D/2D Schottky heterojunction, which promotes the spatial charge separation and increases the surface reactive sites.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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