Synthesis of hierarchical hollow spherical CdS nanostructures by microwave hydrothermal process

Hierarchical hollow spherical CdS nanostructures were synthesized via a simple microwave hydrothermal(M-H) process using CdCl2·H2O and Na2S2O3·5H2O as raw materials and adding ethylenediaminetetraacetic acid (EDTA) as template. The obtained products were characterized by X-ray diffraction (XRD), fie...

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Bibliographic Details
Published in:Transactions of Nonferrous Metals Society of China 2012-10, Vol.22, p.s89-s94
Main Authors: HU, Bao-yun, JING, Zhen-zi, HUANG, Jian-feng, YUN, Jun
Format: Article
Language:English
Subjects:
CdS
hierarchical hollow sphere
microwave hydrothermal method
optical property
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Summary:Hierarchical hollow spherical CdS nanostructures were synthesized via a simple microwave hydrothermal(M-H) process using CdCl2·H2O and Na2S2O3·5H2O as raw materials and adding ethylenediaminetetraacetic acid (EDTA) as template. The obtained products were characterized by X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), energy dispersive spectroscopy (EDS), and high-resolution transmission electron microscopy (HRTEM). Ultraviolet-visible (UV-vis) spectroscopy was used to study the optical properties of CdS. The results demonstrate that the hierarchical hollow spherical CdS with a diameter range of 400-600 nm is self-assembled by nanoparticles of 30 nm and in a wurtzite structure. EDTA and microwave play an important role on the formation of the hollow hierarchical morphology. The effect of the microwave and possible growth mechanism were discussed. UV-vis spectroscopy indicates that the CdS crystallites could be used as a potential blue light emitting material.
ISSN:1003-6326
DOI:10.1016/S1003-6326(12)61689-6