Controllable synthesis of nanocrystalline CdS with different morphologies and particle sizes by a novel solvothermal process

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Shu-Hong Yu, Jian Yang, Zhao-Hui Han, Yong Zhou, Ru-Yi Yang, Yi-Tai Qian and Yu-Heng Zhang


Abstract

Nanocrystalline CdS with different morphologies and particle sizes was obtained via a novel solvothermal reaction between cadmium salts such as Cd(NO3)2·4H2O or CdSO4·8/3H2O and thiourea (Tu) at relatively low temperature. It is found that solvents play an important role in controlling the morphology and particle sizes of the nanocrystalline CdS product. The effect of solvents, anions of the cadmium salt, the molar ratio of Tu to the cadmium salt, and temperature on the morphology, particle sizes and phase of nanocrystalline CdS products has been investigated.


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