A facile solution chemical route to self-assembly of CuS ball-flowers and their application as an efficient photocatalyst
A facile solution chemical route to self-assembly of CuS ball-flowers and their application as an efficient photocatalyst
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CuS球花自组装的简便溶液化学路线及其作为高效光催化剂的应用
DOI：
10.1039/b914902c
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发表时间：
2010-01-01
期刊：
影响因子：
3.1
通讯作者：
Geng, Baoyou
中科院分区：
文献类型：
--
作者：
Cheng, Zhiguo;Wang, Shaozhen;Geng, Baoyou
球花形 CuS 结构是通过使用混合氯化铜和硫脲在简单的水热过程中使用聚（乙烯基吡咯烷酮）（PVP）作为表面活性剂合成的。通过场发射扫描电子显微镜（FE-SEM）的形貌研究表明，球花状纳米结构是大量单分散的。球花形状强烈依赖于氯化铜与硫脲的不同比例、反应温度和反应时间。详细讨论了球花形 CuS 产物形成的可能生长机制。此外，通过紫外光照射下降解罗丹明B（RhB）测试了球花形CuS结构的光催化活性，表明所制备的球花形CuS结构对RhB的降解表现出较高的光催化活性。
Ball-flower shaped CuS structures have been synthesized by using mixed copper chloride and thiourea in a simple hydrothermal process employing poly(vinylpyrrolidone) (PVP) as the surfactant. The morphological investigations by field emission scanning electron microscope (FE-SEM) reveal that the ball-flower shaped nanostructures are monodispersed in large quantities. The ball-flower shaped morphologies are strongly dependent on the different ratios of copper chloride to thiourea, the reaction temperature and reaction time. The possible growth mechanism of the formation of ball-flower shaped CuS products is discussed in detail. In addition, the photocatalytic activity of ball-flower shaped CuS architectures has been tested by the degradation of rhodamine B (RhB) under UV light irradiation, showing that the as-prepared ball-flower shaped CuS structures exhibit high photocatalytic activity for the degradation of RhB.