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

Joanna Reszczyńska; Daniel Arenas Esteban; Maria Gazda; Adriana Zaleska-Medynska

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

Abstract

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.

Authors (4)

Joanna Reszczyńska mgr inż.
Daniel Arenas Esteban
Maria Gazda prof. dr hab. inż.
Adriana Zaleska-Medynska prof. dr hab. inż.

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Category:: Articles
Type:: artykuł w czasopiśmie wyróżnionym w JCR
Published in:: Physicochemical Problems of Mineral Processing no. 50, edition 2, pages 515 - 525,
ISSN: 1643-1049
Language:: English
Publication year:: 2013
Bibliographic description:: 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
Verified by:: Gdańsk University of Technology