Abstract
Strontium titanate nanoparticles were synthesized by a microwave-assisted solvothermal reaction of SrCl2·6H2O, Ti(OC3H7)4 in KOH methanol-oleic acid solution. The products were characterized by TG-DTA, XRD, TEM, BET surface area and XPS. The photocatalytic activity was determined by DeNOx ability using LED lamps with various wavelengths such as 627nm (red), 530nm (green), 445nm (blue) and 390nm (UV). The nanoparticles of perovskite type SrTiO3 with the particle size of 15-18nm were successfully synthesized. The photocatalytic activity of SrTiO3 under visible light (λ=530nm) irradiation could be generated by modification of the surface with the carboxyl group (-COO) from oleic acid which enabled the absorption of visible light.
Original language | English |
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Pages (from-to) | 286-290 |
Number of pages | 5 |
Journal | Applied Catalysis B: Environmental |
Volume | 102 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - 2011 Feb 1 |
Keywords
- Carboxyl
- Dipole layer
- Nb doping
- Photocatalyst
- SrTiO
- Visible light
ASJC Scopus subject areas
- Catalysis
- Environmental Science(all)
- Process Chemistry and Technology