Molten-salt synthesis of Cu–SrTiO3/TiO2 nanotube heterostructures for photocatalytic water splitting

A series of Cu-loaded SrTiO 3 /TiO 2 nanotube heterostructures were synthesized by a facile molten salts method and an impregnation-calcination method. Through adjusting the molar ratio of Sr/Ti, the photocatalytic performance of the samples changed regularly. When Sr/Ti = 0.2, the catalyst showed t...

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Bibliographic Details
Published in:Journal of materials science 2016-05, Vol.51 (9), p.4639-4649
Main Authors: Zhu, Feng, Li, Cuiping, Ha, Minh Ngoc, Liu, Zhifu, Guo, Qiangsheng, Zhao, Zhe
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Chemistry and Materials Science
Classical Mechanics
Crystallites
Crystallography and Scattering Methods
Heterostructures
Hydrogen production
Materials Science
Molten salts
Nanotubes
Original Paper
Performance enhancement
Photocatalysis
Polymer Sciences
Solid Mechanics
Strontium titanates
Titanium dioxide
Ultraviolet radiation
Water splitting
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Summary:A series of Cu-loaded SrTiO 3 /TiO 2 nanotube heterostructures were synthesized by a facile molten salts method and an impregnation-calcination method. Through adjusting the molar ratio of Sr/Ti, the photocatalytic performance of the samples changed regularly. When Sr/Ti = 0.2, the catalyst showed the highest performance in water splitting and the H 2 generation amount was 0.597 mmol under UV irradiation for 8 h. The enhanced performance of Cu-loaded SrTiO 3 /TiO 2 nanotubes could be attributed to the heterostructures, the small crystallite size, and the reduced band gap inside them.
ISSN:0022-2461
1573-4803
1573-4803
DOI:10.1007/s10853-016-9779-9