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- Title
Mechanism of the formation of photosensitive nanostructured TiO with low content of CdS nanoparticles.
- Authors
Vorokh, A.; Kozhevnikova, N.; Gorbunova, T.; Baklanova, I.; Gyrdasova, O.; Buldakova, L.; Yanchenko, M.; Bamburov, V.
- Abstract
A method for synthesizing a CdS/TiO composite material, active in the visible region, was described. The CdS/TiO composite was obtained by the sol-gel synthesis of nanostructured TiO in a medium of a stable colloidal solution of CdS nanoparticles. The TiO matrix produced by the sol-gel process is amorphous and contains a nanocrystalline anatase phase, the content of which depends on the Ti(OBu) hydrolysis rate. The content of CdS nanoparticles forming in the colloidal solution and participating in the TiO matrix sensitization is determined by the initial CdS: Ti(OBu) ratio. Although the content of CdS nanoparticles in the composite is low (no more than 3 wt %), the composite demonstrates catalytic activity in the visible region, thus proving the possibility of reducing the content of toxic CdS nanoparticles in the TiO matrix without decreasing the photosensitivity of the CdS/TiO composite.
- Subjects
NANOSTRUCTURED materials synthesis; TITANIUM dioxide nanoparticles; PHOTOSENSITIVITY; CADMIUM sulfide synthesis; SOL-gel processes
- Publication
Doklady Physical Chemistry, 2016, Vol 467, Issue 2, p56
- ISSN
0012-5016
- Publication type
Article
- DOI
10.1134/S0012501616040059