Lanthanide-doped titanium dioxide layers as photocatalysts |
| |
Authors: | M Uzunova-Bujnova D Dimitrov |
| |
Institution: | a Department of General and Inorganic Chemistry, Faculty of Chemistry, University of Sofia, 1 J. Bourchier Boulevard, Sofia 1164, Bulgaria b Institute of Electronics, Bulgarian Academy of Sciences, 72 Tsarigradsko Shosse Boulevard, Sofia 1784, Bulgaria |
| |
Abstract: | Films (∼0.5 mg/cm2) from TiO2 doped with 1-10 mol% Ln3+ (Ln = La or Gd) are deposited on different types of substrates by spray-pyrolysis using ethylene glycol solutions of Ti4+-Ln3+ citric complexes as starting material and O2 as a carrier gas. The films are post-deposition heated at 500 °C. Their phase composition, crystal structure, morphology, sorption ability and photocatalytic activity are studied. Aqueous solution of methylene blue is applied as a model pollutant. A film with 5 mol% La on Ti-coated stainless steel substrate shows significantly higher photocatalytic activity than the best performing samples produced from commercially available titania. |
| |
Keywords: | 68 43 &minus h 77 84 Dy 81 15 &minus z 82 50 &minus m |
本文献已被 ScienceDirect 等数据库收录! |
|