School of Physics and Technology, University of Jinan, 336 Nanxin Zhuang West Road, Jinan, 250022, Shandong Province, People's Republic of China.
Sci Rep. 2017 Jun 20;7(1):3877. doi: 10.1038/s41598-017-04270-y.
CdS decorated CuS structures have been controllably synthesized through a one-pot hydrothermal method. The morphologies and compositions of the as-prepared samples could be concurrently well controlled by simply tuning the amount of CdCl and thiourea. Using this strategy, the morphology of the products experienced from messy to flower-like morphologies with multiple porous densities, together with the phase evolution from pure CuS to the CdS/CuS composites. Serving as a photocatalyst, the samples synthesized with the addition of 1 mmol cadmium chloride and 3 mmol thiourea during synthetic process, showed the best photocatalytic activity, which could reach a maximum photocatalytic efficiency of 93% for methyl orange (MO) photodegradation after 150 min. The possible mechanism for the high photocatalytic efficiency of the sample was proposed by investigating the composition, surface area, structure, and morphology before and after photocatalytic reaction.
通过一步水热法可控合成了 CdS 修饰的 CuS 结构。通过简单地调节 CdCl 和硫脲的用量，可以同时很好地控制所制备样品的形貌和组成。通过这种策略，产品的形貌从杂乱无章的形态演变为具有多种多孔密度的花状形态，同时从纯 CuS 到 CdS/CuS 复合材料的相演变。作为光催化剂，在合成过程中添加 1mmol 氯化镉和 3mmol 硫脲的样品表现出最佳的光催化活性，对于甲基橙（MO）的光降解，在 150min 后可达到 93%的最大光催化效率。通过研究光催化前后样品的组成、比表面积、结构和形貌，提出了样品具有高光催化效率的可能机制。
