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Fabrication of mesoporous CdS nanorods by chemical etching

Published online by Cambridge University Press:  31 January 2011

Lin Yang
Affiliation:
Structure Research Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
Jian Yang
Affiliation:
Structure Research Laboratory and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
Zheng-Hua Wang
Affiliation:
Structure Research Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
Jing-Hui Zeng
Affiliation:
Structure Research Laboratory and Department of Chemistry, University of Science zand Technology of China, Hefei, Anhui 230026, People's Republic of China
Li Yang
Affiliation:
Department of Chemistry, University of Science and Technology of China, Hefi, Anhui 230026, People's Republic of China
Yi-Tai Qian
Affiliation:
Structure Research Laboratory and Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China
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Abstract

One-dimensional CdS nanocrystallites were used as precursors for preparation of mesoporous CdS nanorods through an ion-exchange process at room temperature. The results from x-ray photoelectron spectroscopy, transmission electron microscopy, energy-dispersive x-ray analysis, and x-ray powder diffraction techniques showed that Ag+ did not affect the electronic structure of CdS or cause the disorder of crystal structure although the product contained a considerable amount of Ag2S. The visible absorption of Ag2S nanoparticles in the mesoporous structure led to the result that the intensities of Raman scattering peaks of the mesoporous nanorods were weaker than those of CdS initial nanorods.

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Copyright
Copyright © Materials Research Society 2003

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Fabrication of mesoporous CdS nanorods by chemical etching
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