In this work, hierarchical hollow BiOBr submicrospheres (HBSMs) were successfully prepared via a facile yet efficient solvothermal strategy. Remarkable effects of solvents upon the crystallinities, morphologies, and microstructures of the BiOBr products were systematically investigated, which revealed that the glycerol/isopropanol volumetric ratio played a significant role in the formation of hollow architecture. Accordingly, the underlying formation mechanism of the hollow submicrospheres was tentatively put forward here. Furthermore, the photocatalytic activities of the resulting HBSMs were evaluated in detail with photocatalytic degradation of the organic methyl orange under visible light irradiation. Encouragingly, the as-obtained HBSMs with striking recyclability demonstrated excellent visible-light-responsive photocatalytic performance, which benefits from their large surface area, effective visible light absorption, and unique hollow feature, highlighting their promising commercial application in waste water treatment.

中文翻译：

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便捷的溶剂热法合成具有增强的可见光响应性光催化性能的空心BiOBr亚微球

在这项工作中，通过简便而有效的溶剂热策略成功制备了分级的空心BiOBr亚微球（HBSM）。系统地研究了溶剂对BiOBr产物的结晶度，形态和微观结构的显着影响，表明甘油/异丙醇的体积比在空心结构的形成中起着重要作用。因此，在此初步提出了中空亚微球的潜在形成机理。此外，通过在可见光照射下有机甲基橙的光催化降解，详细评估了所得HBSM的光催化活性。令人鼓舞的是，如此获得的具有令人惊叹的可回收性的HBSM表现出出色的可见光响应性光催化性能，