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The significance of different heating methods on the synthesis of CdS nanocrystals

机译：不同加热方式对CdS纳米晶体合成的意义

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Both microwave and conventional oil bath heating approaches are investigated for the fabrication of CdS nanocrystals through the thermolysis of a single source precursor cadmium diethyldithiocarbamate (CED), which allows us to gain further insight into the thermodynamic aspect of the synthesis. The analysis illustrates that nearly monodispersed sea-urchin-shaped CdS nanocrystals are obtained with the microwave method, whereas nanospheres covered by chunky protuberances are achieved with an oil bath approach. Such experiments suggest that microwave heating facilitates the growth of CdS along the [002] direction. In addition, we explored the catalytic activity of CdS in the photodegradation of rhodamine B, in which the CdS prepared through a microwave approach greatly outperformed that prepared through oil bath heating and the commercial CdS nanoparticles. Such enhancement arises from the higher specific surface area and crystallinity of the sea-urchin-shaped nanocrystals.
机译：研究了微波和常规油浴加热方法通过单源前驱体二乙基二硫代氨基甲酸镉（CED）的热解来制备CdS纳米晶体的方法，这使我们可以进一步了解合成的热力学方面。分析表明，通过微波方法可获得近乎单分散的海胆形CdS纳米晶体，而通过油浴方法可获得块状突起覆盖的纳米球。这样的实验表明微波加热促进了CdS沿[002]方向的生长。此外，我们探索了CdS在若丹明B光降解中的催化活性，其中通过微波方法制备的CdS大大优于通过油浴加热和商业CdS纳米颗粒制备的CdS。这种增强源自海胆形纳米晶体的更高的比表面积和结晶度。

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