期刊
MATERIALS RESEARCH BULLETIN
卷 74, 期 -, 页码 367-373出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2015.10.054
关键词
Nanostructures; Chemical synthesis; Crystal growth; Transmission electron microscopy (TEM); Catalytic properties
资金
- National Basic Research Program of China [2009CB939705]
- Fundamental Research Funds for the Central Universities [HUST: 2012QN042]
Linked ZnO nanorods have been successfully prepared via a facile microwave method without any post-synthesis treatment. The X-ray diffraction (XRD) patterns indicated the precursor had completely transformed into the pure ZnO crystal. The Images of field emitting scanning electron microscope (FESEM) and transmission electron microscope (TEM) showed that linked ZnO nanorods consisted predominantly of ZnO bipods. The formation process of the ZnO bipods was clearly discussed. ZnO bipods with different aspect ratios have been obtained by tuning the concentrations of reagents and microwave power. Moreover, the photocatalytic performance of ZnO bipods with different aspect ratios for degradation of methylene blue was systematically evaluated. The results of photocatalytic experiments showed that the photocatalytic activity increased with the aspect ratios of ZnO bipods increased. The reason is that ZnO bipods with larger aspect ratio have higher surface area, which can absorb more MB molecules to react with (OH)-O-center dot radicals. (C) 2015 Elsevier Ltd. All rights reserved.
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