期刊
JOURNAL OF SOLID STATE CHEMISTRY
卷 182, 期 10, 页码 2791-2795出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2009.07.038
关键词
ZnO; ZnS; Core/shell structures; Nanotubes; Optical properties
资金
- National Natural Science Foundation of China [50504017]
- Hunan Provincial Key Science and Technology Project of China [2007FJ3008]
We demonstrate here that ZnS nanotubes can be successfully synthesized via a facile conversion process from ZnO nanorods precursors. During the conversion process, ZnO nanorods are first prepared as sacrificial templates and then converted into tubular ZnO/ZnS core/shell naonocomposites through a hydrothermal sulfidation treatment by using thioacetamide (TAA) as sulfur source. ZnS nanotubes are finally obtained through the removal of ZnO cores of tubular ZnO/ZnS core/shell naonocomposites by KOH treatment. The photoluminescence (PL) characterization of the as-prepared products shows much enhanced PL emission Of tubular ZnO/ZnS core/shell nanocomposites compared with their component counterparts. The probable mechanism of conversion process is also proposed based on the experimental results. (C) 2009 Elsevier Inc. All rights reserved.
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