Abstract Fabrication of noble-metal nanoparticle decorated hierarchical heterostructure photocatalyst composed of ultrathin nanoflake can be considered as one of the most effective approach for enhancing the photocatalytic performance due to its unique micro-scale structure and functional combination. Therefore, we report the successful preparation of Ag nanoparticle-decorated biscuit-like Bi 24 O 31 Cl 10 hierarchical microstructure through a facile solution-phase synthesis route. Experiment indicated that the Bi 24 O 31 Cl 10 product was comprised of ultrathin nanoflake with thickness of 5–10 nm. After introducing Ag nanoparticle, the as-obtained Ag-Bi 24 O 31 Cl 10 nanocomposite exhibited improved photocatalytic performance for the decolorization of rhodamine B in comparison to pure Bi 24 O 31 Cl 10 sample. The amount of Ag in the heterostructure photocatalyst significantly influenced the photocatalytic efficiency, and 4 wt% Ag exhibited the best photocatalytic performance. In addition, an enhanced mechanism of photodegradation activity over Ag nanoparticle-decorated biscuit-like Bi 24 O 31 Cl 10 hierarchical microstructure was proposed.

中文翻译：

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Ag纳米粒子修饰的饼干状Bi 24 O 31 Cl 10 由具有优异光催化活性的超薄纳米薄片组成的分层微结构

摘要 制备由超薄纳米薄片组成的贵金属纳米颗粒修饰的分级异质结构光催化剂，由于其独特的微尺度结构和功能组合，被认为是提高光催化性能的最有效方法之一。因此，我们报告了通过简便的液相合成路线成功制备了银纳米颗粒装饰的饼干状 Bi 24 O 31 Cl 10 分级微结构。实验表明，Bi 24 O 31 Cl 10 产物由厚度为5-10 nm的超薄纳米薄片组成。引入Ag纳米颗粒后，与纯Bi 24 O 31 Cl 10 样品相比，所获得的Ag-Bi 24 O 31 Cl 10 纳米复合材料对罗丹明B的脱色表现出改进的光催化性能。异质结构光催化剂中Ag的含量显着影响光催化效率，4wt%的Ag表现出最佳的光催化性能。此外，提出了一种在Ag纳米颗粒装饰的饼干状Bi 24 O 31 Cl 10 分级微结构上光降解活性增强的机制。