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- Title
Controlled preparation of TiO hollow microspheres constructed by crosslinked nanochains with high photocatalytic activity.
- Authors
Song, Haojie; You, Shengsheng; Chen, Tao; Jia, Xiaohua
- Abstract
TiO hollow microspheres were successfully synthesized via a controlled hydrolysis reaction, which involved the deposition of an inorganic coating of TiO on the surface of carbon spheres and subsequent removal of carbon spheres by calcination in air. The as-prepared TiO hollow microspheres with an average diameter of 200 nm presented a novel morphology, which was constructed by closely crosslinked TiO nanochains. The morphology of the hollow sphere can be controlled by varying the concentration of TiCl solution. A possible formation mechanism was also proposed. The photo-degradation of rhodamine B (RhB) aqueous solution showed that TiO hollow microspheres exhibited higher photocatalytic activity than that of TiO nanoparticles. The enhanced photocatalytic activity of the as-prepared TiO microspheres here could result from their hollow structures assembled by TiO nanochains and large light-harvesting efficiency.
- Subjects
MICROSPHERES; PHOTOCATALYSIS; PHOTOCATALYSTS; HYDROLYSIS; AQUEOUS solutions
- Publication
Journal of Materials Science: Materials in Electronics, 2015, Vol 26, Issue 11, p8442
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-015-3513-2