期刊
NANOSCALE RESEARCH LETTERS
卷 9, 期 -, 页码 -出版社
SPRINGEROPEN
DOI: 10.1186/1556-276X-9-270
关键词
Hydrothermal; S-CBD; CdS-TiO2 NWs; Photocatalytic activity
资金
- 211 project of Anhui University
- National Natural Science Foundation of China [50901074, 61290301, 51072001, 11174002, 51272001, 51272003]
- Anhui Provincial Natural Science Fund [11040606 M49]
- Higher Educational Natural Science Foundation of Anhui Province [KJ2012A007, KJ2012A083]
In this paper, TiO2 nanowires (NWs) on Ti foils were prepared using a simple hydrothermal approach and annealing treatment. CdS quantum dots (QDs) were assembled onto the crystallized TiO2 NWs by sequential chemical bath deposition. Ultraviolet-visible absorption spectra showed that CdS adds bands in the visible to the TiO2 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-TiO2 NWs possessed higher photocatalytic activities toward methyl orange than pure TiO2 nanowires. The degradation efficiency of 96.32% after ten cycles indicated that the as-prepared CdS-TiO2 composite exhibited excellent long-time recyclable ability and can be reused for the degradation of contaminants.
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