期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 17, 期 31, 页码 8663-8670出版社
WILEY-BLACKWELL
DOI: 10.1002/chem.201003531
关键词
crystal growth; nanostructures; photocatalysis; synthesis design
资金
- Natural Science Foundation of China [21071055]
- New Century Excellent Talents in University [NCET-10-0369]
- Guang dong Provincial Natural Science Foundation of China
- Fundamental Research Funds for the Central Universities at SCUT [2009ZM 0233]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars
- State Key Laboratory for Artificial Microstructure and Mesoporous Physics in Peking University
Ultrathin ZnSe nanorods in the cubic phase have been synthesized by the reaction of selenium and zinc oleate for 30 min at 240 degrees C. These nanorods showed an average diameter of 2.4 nm, which is much smaller than the Bohr size of bulk ZnSe. Thus, they exhibited a remarkable quantum size effect in terms of their optical properties. The formation of the ultrathin nanorods could be attributed to the oriented attachment mechanism, which was supported by the structure of the nanorods and the control experiments. The ultrathin nanorods were transferred into an aqueous solution by ligand exchange. The performance of these nanorods as a catalyst was examined, using the photodegradation of methyl orange as a model reaction. It was found that the ultrathin nanorods possessed better photocatalytic activities than conventional ones.
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