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Hydrothermal growth of TiO(2) nanowire membranes sensitized with CdS quantum dots for the enhancement of photocatalytic performance
In this paper, TiO(2) nanowires (NWs) on Ti foils were prepared using a simple hydrothermal approach and annealing treatment. CdS quantum dots (QDs) were assembled onto the crystallized TiO(2) NWs by sequential chemical bath deposition. Ultraviolet-visible absorption spectra showed that CdS adds ban...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4046152/ https://www.ncbi.nlm.nih.gov/pubmed/24936164 http://dx.doi.org/10.1186/1556-276X-9-270 |
Sumario: | In this paper, TiO(2) nanowires (NWs) on Ti foils were prepared using a simple hydrothermal approach and annealing treatment. CdS quantum dots (QDs) were assembled onto the crystallized TiO(2) NWs by sequential chemical bath deposition. Ultraviolet-visible absorption spectra showed that CdS adds bands in the visible to the TiO(2) absorption and exhibited a broad absorption band in the visible region, which extended the scope of absorption spectrum and helped improve the photocatalytic degradation efficiency. The results of photocatalytic experiment revealed that CdS-TiO(2) NWs possessed higher photocatalytic activities toward methyl orange than pure TiO(2) nanowires. The degradation efficiency of 96.32% after ten cycles indicated that the as-prepared CdS-TiO(2) composite exhibited excellent long-time recyclable ability and can be reused for the degradation of contaminants. |
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