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Preparation and characterization of Rb-doped TiO2 powders for photocatalytic applications.
- Source :
- Rare Metals; Feb2024, Vol. 43 Issue 2, p555-561, 7p
- Publication Year :
- 2024
-
Abstract
- TiO<subscript>2</subscript> nanoparticles doped with different concentrations of Rb were prepared by sol–gel method. The crystal structures of samples were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM). It was confirmed by the Rietveld refinement method that the as-prepared samples crystallize in anatase phase and Rb doping induces expansion and distortion of the crystal lattice. Compared with the pure TiO<subscript>2</subscript>, the Rb-doped nanoparticles have smaller crystal size and better dispersibility. Degradation rate of methylene blue was used to evaluate the photocatalytic activity of Rb–TiO<subscript>2</subscript>. It indicated that doping Rb into TiO<subscript>2</subscript> can effectively improve the photocatalytic activity of TiO<subscript>2</subscript> and the mechanisms were discussed in detail. When using the sample doped with 0.20% Rb, methylene blue degraded with the fastest rate (97% within 60 min). [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10010521
- Volume :
- 43
- Issue :
- 2
- Database :
- Complementary Index
- Journal :
- Rare Metals
- Publication Type :
- Academic Journal
- Accession number :
- 175023080
- Full Text :
- https://doi.org/10.1007/s12598-019-01241-2