期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 2, 期 39, 页码 16381-16388出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta02975e
关键词
-
资金
- [26708027]
- Grants-in-Aid for Scientific Research [26708027] Funding Source: KAKEN
Hydrothermal treatment of a layered titanate (K2Ti2O5) in the presence of tetrapropylammonium hydroxide and ammonium fluoride, inspired by a zeolite synthesis method called interzeolite conversion, produced a new titania-based material, a microporous titanate nanofiber. Judging from a variety of analyses such as high resolution transmission electron microscopy, Ar adsorption/desorption and adsorption of small and large cations from aqueous solutions, the product had several one-dimensional channels with a width Less than 1 nm in a nanofiber. This new material showed a welt-restrained photocatalytic activity, which was evaluated by the oxidation of cyclohexane and 2-propanol, and the activity was considerably lower than that of a photocatalytically inactive rutile-type TiO2. The material also exhibited an extremely low refractive index (approximately 1.7). Thanks to these unique photoproperties, a microporous titanate nanofiber was successfully embedded in a commodity organic polymer (polycaprolactone) and then used as a highly efficient ultraviolet light (UV) protective transparent coating on a UV-sensitive substrate.
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