期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 21, 期 25, 页码 9009-9013出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1jm10458f
关键词
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资金
- Science and Technology Development Fund (Shanghai) [09520500500, 0752nm008]
- Shanghai Education Commission [09ZZ136]
- Key Laboratory of Resource Chemistry of Ministry of Education of China
We report a bifunctional hollow porous microsphere composed of single-component BaMoO4 : Pr3+ nanocrystals by a facile template-free synthesis. All the as-synthesized hollow microspheres are well-dispersed with a diameter of 2-4 mu m and the BaMoO4 : Pr3+ nanocrystals measure 30-60 nm in diameter. It is observed that there are a large amount of pores with an average diameter is 17.5 nm in the shell of these BaMoO4 : Pr3+ hollow microspheres, thereby exhibiting a great promise for drug delivery. Meanwhile, the strong, narrow-bandwidth red emission centered at 643 nm from these nanostructures can be efficiently excited from 430 nm to 500 nm. The combination of excellent luminescent properties and a hollow porous nanostructure suggest a great promise in the application of these nanostructures in lighting and displays, and in biomedicine such as targeted drug delivery, integrated imaging, diagnosis, and therapeutics. In addition, the template-free solution synthesis can be applied to the design and fabrication of other functional architectures.
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