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Facile one-step synthesis of TiO2/Ag/SnO2 ternary heterostructures with enhanced visible light photocatalytic activity
Novel TiO 2 /Ag/SnO 2 composites were successfully prepared by a facile one-step reduction approach using stannous chloride as both SnO 2 precursor and reducing agent. The Ag nanoparticles with sizes of 2.04–3.94 nm were located on TiO 2 matrix and immobilized by the surrounded SnO 2 . The resulted...
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Published in: | Scientific reports 2018-07, Vol.8 (1), p.1-11, Article 10532 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Novel TiO
2
/Ag/SnO
2
composites were successfully prepared by a facile one-step reduction approach using stannous chloride as both SnO
2
precursor and reducing agent. The Ag nanoparticles with sizes of 2.04–3.94 nm were located on TiO
2
matrix and immobilized by the surrounded SnO
2
. The resulted TiO
2
/Ag/SnO
2
nanocomposites were used as photocatalyst for photodegradation of methylene blue under visible light. The experimental results demonstrated that the visible light photocatalytic activity of the TiO
2
/Ag/SnO
2
was significantly enhanced in comparison with the individual TiO
2
or the binary composite (TiO
2
/Ag or TiO
2
/SnO
2
) and the degradation rate was up to about 9.5 times that of commercial TiO
2
. The photocatalytic activity of the TiO
2
/Ag/SnO
2
composites could be well controlled by simply tuning the dosages of Ag precursor and the optimized activity of the composites was obtained when the dosage of Ag precursor was 2%. Moreover, the TiO
2
/Ag/SnO
2
photocatalyst exhibited high stability for degradation of methylene blue even after four successive cycles. |
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ISSN: | 2045-2322 2045-2322 |
DOI: | 10.1038/s41598-018-28832-w |