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Pr-doped TiO2: The effect of metal content on photocatalytic activity

Abstrakt

The Pr-TiO2 nanoparticles were prepared by using the 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 the absorption edge toward the visible region were observed for the doped samples compared to pure TiO2.

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Informacje szczegółowe

Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
Physicochemical Problems of Mineral Processing nr 50, wydanie 2, strony 515 - 525,
ISSN: 1643-1049
Język:
angielski
Rok wydania:
2013
Opis bibliograficzny:
Reszczyńska J., Arenas Esteban D., Gazda M., Zaleska-Medynska A.: Pr-doped TiO2: The effect of metal content on photocatalytic activity// Physicochemical Problems of Mineral Processing. -Vol. 50, iss. 2 (2013), s.515-525
Weryfikacja:
Politechnika Gdańska

wyświetlono 14 razy

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