| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10645741 | Materials Characterization | 2005 | 7 Pages |
Abstract
Titania nanoparticles doped with Cr3+ (2% relative to molar quantity of titania) were prepared and examined by EDS, HRTEM, XRD, and UV-VIS analysis. HRTEM images showed the detailed atomic arrays and vacancy defects of the doped Titania nanocrystals and revealed that the implanted Cr element existed in titania mainly as Cr3+ ions which located at the lattice positions of Ti4+ ions. Compared with pure titania, the UV-VIS spectra of the Cr3+ doped titania show significantly increased absorbance in visible light region. This indicated that the presence of the Cr3+ ions affected the lattice structure of titania nanocrystals and plays an reformative role in spectral feature of titania.
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Physical Sciences and Engineering
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Materials Science (General)
Authors
Z.L. Liu, Z.L. Cui, Z.K. Zhang,