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Preparation, optical property, and photocatalytic activity of cubic Cu2O/amorphous TiO2 and spheric CuO/TiO2 core-shell nanocomposites.
- Source :
-
Materials Letters . Sep2014, Vol. 131, p86-89. 4p. - Publication Year :
- 2014
-
Abstract
- Cu2O/amorphous TiO2 core-shell nanocomposites with uniform cubic structure were prepared by a hydrolysis method and CuO/TiO2 core-shell nanocomposites were obtained by a post-calcination process. The structure and morphology of the products were characterized by powder X-ray diffraction, transmission electron microscopy, and scanning electron microscopy. The results showed that the cubic Cu2O/TiO2 core-shell nanocomposites were of 110-140nm in side length and the as-hydrolyzed TiO2 shell layer was amorphous. The products transformed to quasi-spheric CuO/TiO2 (anatase) nanocomposites after calcination. The visible-light photocatalytic properties of different products towards methyl orange (MO) were investigated. The results showed that the photocatalytic activity of the cubic Cu2O/amorphous TiO2 core-shell nanocomposites was higher than that of pure Cu2O nanocubes, pure TiO2 nanoparticles, and the spheric CuO/TiO2 core-shell nanocomposites. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 0167577X
- Volume :
- 131
- Database :
- Academic Search Index
- Journal :
- Materials Letters
- Publication Type :
- Academic Journal
- Accession number :
- 97002616
- Full Text :
- https://doi.org/10.1016/j.matlet.2014.05.127