Photocatalytic Deposition of Silver Nanoparticles onto Organic/Inorganic Composite Nanofibers
✍ Scribed by Sang Kyoo Lim; Soo-Keun Lee; Sung-Ho Hwang; Hoyoung Kim
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 411 KB
- Volume
- 291
- Category
- Article
- ISSN
- 1438-7492
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✦ Synopsis
Abstract
Summary: In this work, silver nanoparticles were embedded in electrospun organic/inorganic composite nanofibers consisting of PAN and TiO~2~ through photocatalytic reduction of the silver ions in silver nitrate solutions under UV irradiation. The morphology and diameter of PAN/TiO~2~ composite nanofibers could be controlled by varying the initial contents of TiO~2~ in the spinning solution. From TEM images and UV‐Vis spectra, it has been confirmed that monodisperse silver nanoparticles with a diameter of ≈2 nm were deposited selectively upon the titania of the as prepared composite nanofibers. The amount of Ag nanoparticles embedded on composite nanofibers was greatly influenced by the amount of TiO~2~ in composite nanofibers, reflecting the role of titania as the inorganic stabilizer and photocatalyst.
Morphology of silver nanoparticles embedded on PAN/TiO~2~ composite nanofibers.
magnified imageMorphology of silver nanoparticles embedded on PAN/TiO~2~ composite nanofibers.