Details
| Original language | English |
|---|---|
| Pages (from-to) | 6341-6348 |
| Number of pages | 8 |
| Journal | Journal of materials science |
| Volume | 52 |
| Issue number | 11 |
| Publication status | Published - 1 Jun 2017 |
Abstract
Transition metal doping is an appropriate way to increase the photocatalytic activity of TiO 2 as it offers the chance to also utilize visible light to generate charge carriers. Here, we investigated the photocatalytic activity of commercially available Evonik Aeroxide ® TiO 2 P25 and its iron-doped analog Evonik Aeroxide ® TiO 2 PF2. For this study, we used as model reaction the photocatalytic oxidation of methanol (CH 3OH) to formaldehyde (HCHO) employing artificial solar illumination with and without UV-light. Apparently, the iron content in PF2 is too high and therefore has a negative effect on its photocatalytic activity. Furthermore, by the comparison of photonic efficiencies (ξ) and quantum efficiencies (Φ) we could show the importance of not just calculating photonic efficiencies but also shed some light on the mechanism how the charge carriers in P25 are generated.
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
Cite this
- Standard
- Harvard
- Apa
- Vancouver
- BibTeX
- RIS
In: Journal of materials science, Vol. 52, No. 11, 01.06.2017, p. 6341-6348.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Comparing photocatalytic activities of commercially available iron-doped and iron-undoped aeroxide TiO2 P25 powders
AU - Melcher, J.
AU - Feroz, S.
AU - Bahnemann, D.
N1 - Publisher Copyright: © 2017, Springer Science+Business Media New York. Copyright: Copyright 2017 Elsevier B.V., All rights reserved.
PY - 2017/6/1
Y1 - 2017/6/1
N2 - Transition metal doping is an appropriate way to increase the photocatalytic activity of TiO 2 as it offers the chance to also utilize visible light to generate charge carriers. Here, we investigated the photocatalytic activity of commercially available Evonik Aeroxide ® TiO 2 P25 and its iron-doped analog Evonik Aeroxide ® TiO 2 PF2. For this study, we used as model reaction the photocatalytic oxidation of methanol (CH 3OH) to formaldehyde (HCHO) employing artificial solar illumination with and without UV-light. Apparently, the iron content in PF2 is too high and therefore has a negative effect on its photocatalytic activity. Furthermore, by the comparison of photonic efficiencies (ξ) and quantum efficiencies (Φ) we could show the importance of not just calculating photonic efficiencies but also shed some light on the mechanism how the charge carriers in P25 are generated.
AB - Transition metal doping is an appropriate way to increase the photocatalytic activity of TiO 2 as it offers the chance to also utilize visible light to generate charge carriers. Here, we investigated the photocatalytic activity of commercially available Evonik Aeroxide ® TiO 2 P25 and its iron-doped analog Evonik Aeroxide ® TiO 2 PF2. For this study, we used as model reaction the photocatalytic oxidation of methanol (CH 3OH) to formaldehyde (HCHO) employing artificial solar illumination with and without UV-light. Apparently, the iron content in PF2 is too high and therefore has a negative effect on its photocatalytic activity. Furthermore, by the comparison of photonic efficiencies (ξ) and quantum efficiencies (Φ) we could show the importance of not just calculating photonic efficiencies but also shed some light on the mechanism how the charge carriers in P25 are generated.
UR - http://www.scopus.com/inward/record.url?scp=85011706195&partnerID=8YFLogxK
U2 - 10.1007/s10853-017-0865-4
DO - 10.1007/s10853-017-0865-4
M3 - Article
VL - 52
SP - 6341
EP - 6348
JO - Journal of materials science
JF - Journal of materials science
SN - 0022-2461
IS - 11
ER -