期刊
MATERIALS CHEMISTRY AND PHYSICS
卷 109, 期 1, 页码 164-168出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.matchemphys.2007.11.010
关键词
nanostructures; semiconductors; microwave-induced assembly; zinc sulfide
Using sodium thiosulfate (Na2S2O3) and zinc nitrate hexahydrate as initial materials, ZnS nanospheres were prepared under natural lights at room temperature. The ZnS nanospheres as a preformed building block were further assembled into hierarchical nanospheres by microwave (MW) irradiation in a high pure nitrogen-protected atmosphere. X-ray diffraction (XRD), transmission electron microscope (TEM) and X-ray photoelectron spectra (XPS) analytical techniques were used to characterize as-prepared products, revealing that the monodisperse ZnS nanoshperes were assembled with the smaller nanoparticles with a mean diameter of 5 nm. As a result, a novel microwave-induced assembly mechanism was proposed and highlighted. (C) 2007 Elsevier B.V. All rights reserved.
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