- Tytuł:
- Pr-doped TiO2. The effect of metal content on photocatalytic activity
- Autorzy:
-
Reszczynska, J.
Arenas Esteban, D.
Gazda, M.
Zaleska, A. - Powiązania:
- https://bibliotekanauki.pl/articles/110437.pdf
- Data publikacji:
- 2014
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
photocatalysis
rare earth metal
praseodymium
modified TiO2
phenol - Opis:
- Pr-TiO2 nanoparticles were prepared by using a sol-gel method. As-prepared samples were characterized by BET measurements, X-ray powder diffraction analysis (XRD) and UV-Vis spectra. Visible and ultraviolet light photocatalytic activity of the sample was studied by photodegradation of phenol, while considering the influence of the dopant concentration. TiO2 doped with 0.25 mol% of praseodymium showed the highest photocatalytic activity under visible light irradiation. Pr-TiO2 had anatase structure. The surface area was higher for powders with higher content of rare earth metal ion, and ranged from 121 to 150 m2/g. Red shifts of absorption edge toward the visible region were observed for the doped samples compared to pure TiO2.
- Źródło:
-
Physicochemical Problems of Mineral Processing; 2014, 50, 2; 515-524
1643-1049
2084-4735 - Pojawia się w:
- Physicochemical Problems of Mineral Processing
- Dostawca treści:
- Biblioteka Nauki
Artykuł