期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 20, 期 16, 页码 3272-3279出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/b927465k
关键词
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资金
- National Natural Science Foundation of China [20771098]
- Fund for Creative Research Groups [20921002]
- National Basic Research Program of China [2007CB935502, 2006CB601103]
Novel one-dimensional terbium 1,3,5-benzenetricarboxylate nanobelts have been synthesized on a large scale through direct precipitation in solution phase without the assistance of any surfactant, catalyst, or template. The as-obtained nanobelts present crystallinity in spite of the moderate reaction conditions, exhibiting 1D helical strands and a 3D network framework. The influence of the reaction temperature, concentration, molar ratio of reactants, and solvent on the belt-like nanostructure has been discussed in detail. A possible mechanism based on the crystal structure of the compound is proposed to account for the formation of the nanobelts. A detailed investigation of the photoluminescence of Tb(1,3,5-BTC)(H2O)center dot 3H(2)O nanobelts indicates that the optical properties of these phosphors are dependent on their size. More interestingly, the luminescence color of the Tb(1,3,5-BTC)(H2O)center dot 3H(2)O:Eu3+ nanobelts can be easily tuned from green to green-yellow, yellow, orange and red-orange due to the energy transfer from the Tb3+ to Eu3+ ions by changing the doping concentration of activator ions.
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