One-pot synthesis of 3D flower-like Bi2S3/BiOCl heterostructures at room temperature with enhanced visible-light photocatalytic activity

It is highly desired yet challenging to controllably synthesize heterostructures with well-defined architectures via a facile method at mild conditions. Herein, 3D flower-like Bi2S3/BiOCl heterostructures (BS) were successfully constructed via a one-pot solution-chemistry method at room temperature. It is noteworthy that these 3D flower-like heterostructures exhibit distinctly superior photoactivity for Rhodamine B (RhB) degradation under visible light irradiation. Four-fold higher activity of BS than BiOCl is readily ascribed to the formation of heterostructure, which facilitates the separation of photogenerated electron-hole pairs and the production of active O-2 center dot and h(+) species. (C) 2019 Elsevier B.V. All rights reserved.