Open Access
What is Degussa (Evonik) P25? Crystalline composition analysis, reconstruction from isolated pure particles and photocatalytic activity test
Publication type: Journal Article
Publication date: 2010-12-01
scimago Q2
wos Q2
SJR: 0.694
CiteScore: 7.8
Impact factor: 4.7
ISSN: 10106030, 18732666
General Chemistry
General Chemical Engineering
General Physics and Astronomy
Abstract
Abstract Anatase and rutile crystallites were isolated from Degussa (Evonik) P25 by selective dissolution with a hydrogen peroxide–ammonia mixture and diluted hydrofluoric acid, respectively, and used as standard samples for calibration curves of X-ray diffraction analyses. The results showed that P25 contains more than 70% anatase with a minor amount of rutile and a small amount of amorphous phase. The composition anatase/rutile/amorphous could be determined by analysis of P25 mixed with an internal standard, nickel(II) oxide. However, it was also found that the composition of P25 used in this study was inhomogeneous and changed depending on the position of sampling from the same package. Comparison of activities of original P25 and reconstructed P25 with those of isolated anatase and rutile particles suggested a less-probable synergetic effect of the co-presence of anatase and rutile.
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Citations from 2025:
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Ohtani B. et al. What is Degussa (Evonik) P25? Crystalline composition analysis, reconstruction from isolated pure particles and photocatalytic activity test // Journal of Photochemistry and Photobiology A: Chemistry. 2010. Vol. 216. No. 2-3. pp. 179-182.
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Ohtani B., Prieto Mahaney O. O., Li D., Abe R. What is Degussa (Evonik) P25? Crystalline composition analysis, reconstruction from isolated pure particles and photocatalytic activity test // Journal of Photochemistry and Photobiology A: Chemistry. 2010. Vol. 216. No. 2-3. pp. 179-182.
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TY - JOUR
DO - 10.1016/j.jphotochem.2010.07.024
UR - https://doi.org/10.1016/j.jphotochem.2010.07.024
TI - What is Degussa (Evonik) P25? Crystalline composition analysis, reconstruction from isolated pure particles and photocatalytic activity test
T2 - Journal of Photochemistry and Photobiology A: Chemistry
AU - Ohtani, Bunsho
AU - Prieto Mahaney, O O
AU - Li, D.
AU - Abe, R.
PY - 2010
DA - 2010/12/01
PB - Elsevier
SP - 179-182
IS - 2-3
VL - 216
SN - 1010-6030
SN - 1873-2666
ER -
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BibTex (up to 50 authors)
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@article{2010_Ohtani,
author = {Bunsho Ohtani and O O Prieto Mahaney and D. Li and R. Abe},
title = {What is Degussa (Evonik) P25? Crystalline composition analysis, reconstruction from isolated pure particles and photocatalytic activity test},
journal = {Journal of Photochemistry and Photobiology A: Chemistry},
year = {2010},
volume = {216},
publisher = {Elsevier},
month = {dec},
url = {https://doi.org/10.1016/j.jphotochem.2010.07.024},
number = {2-3},
pages = {179--182},
doi = {10.1016/j.jphotochem.2010.07.024}
}
Cite this
MLA
Copy
Ohtani, Bunsho, et al. “What is Degussa (Evonik) P25? Crystalline composition analysis, reconstruction from isolated pure particles and photocatalytic activity test.” Journal of Photochemistry and Photobiology A: Chemistry, vol. 216, no. 2-3, Dec. 2010, pp. 179-182. https://doi.org/10.1016/j.jphotochem.2010.07.024.