Journal
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
Volume 16, Issue 4, Pages 1651-1658Publisher
WILEY
DOI: 10.1111/ijac.13248
Keywords
codoped SrTiO3; photocatalysis; photodegradation; sol-gel method
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Funding
- Ho Chi Minh City University of Technology [BK-SDH-2019-1570726]
- University of Ulsan
- National Research Foundation of Korea [2014R1A4A1071686, 2017R1E1A1A01075350]
- National Research Foundation of Korea [21A20131100002] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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In 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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