| Enhanced Photocatalytic Activities of Vandium and Molybdenum Co-Doped Strontium Titanate Under Visible Light | |||||
| 작성자 | 김** | 작성일 | 2019-07-29 | 조회수 | 98 |
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Journal Article published Jul 2019 in International Journal of Applied Ceramic Technology volume 16 issue 4 on pages 1651 to 1658
Research funded by Technische Universiteit Delft (BK-SDH-2019-1570726) | University of Ulsan | National Research Foundation of Korea (2017R1E1A1A010753502014R1A4A1071686)
AbstractIn this report, undoped, mono and co?doped perovskite strontium titanate (SrTi1?(x+y)MoxVyO3) were synthesized by the sol?gel method, and their physical and optical properties were investigated. Furthermore, the photocatalytic degradation activities of the synthesized powders were conducted in 10 ppm methylene blue solution under visible?light irradiation. A maximum degradation efficiency of 91.5% was achieved in SrTi0.9Mo0.05V0.05O3 powder whereas only 59.9% of degradation was found in undoped SrTiO3. The improved efficiency in co?doped SrTiO3 was due to the doping of metal cations, Mo+6 and V+5 in the host lattice, which created impurity defect states thereby effectively reducing the bandgap energy of the semiconductor. |
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