Mahapatra, Sudarshan ; Madras, Giridhar ; Guru Row, T. N. (2007) Synthesis, characterization and photocatalytic activity of lanthanide (Ce, Pr and Nd) orthovanadates Industrial & Engineering Chemistry Research, 46 (4). pp. 1013-1017. ISSN 0888-5885
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Official URL: http://pubs.acs.org/doi/abs/10.1021/ie060823i
Related URL: http://dx.doi.org/10.1021/ie060823i
Abstract
A new approach to the synthesis of the lanthanide orthovanadates CeVO4, PrVO4, and NdVO4 is proposed. These compounds exhibit a tetragonal zircon structure, crystallizing in the space group I41/amd with a = 7.3733(4) Å, c = 6.4909(4) Å, and Z = 4. The crystal structure has been analyzed by powder X-ray diffraction and FTIR and UV-visible spectroscopies. Particle sizes were found to be in the range of 200-300 nm as seen by scanning electron microscopy, and energy-dispersive X-ray analysis indicated the formation of LnVO4. Thermal analysis of these solids indicated stability of the phase to 1000 °C. The photocatalytic activity of these compounds was investigated for the first time by the degradation of methylene blue. The degradation rates were similar for all compounds and comparable to that of commercial Degussa titania.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 12054 |
| Deposited On: | 10 Nov 2010 04:49 |
| Last Modified: | 02 Jun 2011 11:47 |
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