Nanosilver Particle Formation on a High Surface Area Titanate
| Autor: | Steven M. Kuznicki, Christopher C. H. Lin, David Mitlin, Lan Wu, Meng Shi, Chris M. B. Holt |
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| Rok vydání: | 2010 |
| Předmět: |
Materials science
Scanning electron microscope Biomedical Engineering chemistry.chemical_element Nanoparticle Bioengineering General Chemistry Condensed Matter Physics Molecular sieve Titanate Silver nanoparticle Chemical engineering chemistry Transmission electron microscopy Particle General Materials Science Titanium |
| Zdroj: | Journal of Nanoscience and Nanotechnology. 10:8448-8451 |
| ISSN: | 1533-4880 |
| DOI: | 10.1166/jnn.2010.3715 |
| Popis: | Titanium based molecular sieves, such as ETS-10, have the ability to exchange silver ions and subsequently support self assembly of stable silver nanoparticles when heated. We report that a high surface area sodium titanate (resembling ETS-2) displays a similar ability to self template silver nanoparticles on its surface. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) show high concentrations of silver nanoparticles on the surface of this sodium titanate, formed by thermal reduction of exchanged silver cations. The nanoparticles range in size from 4 to 12 nm, centered at around 6 nm. In addition to SEM and TEM, XRD and surface area analysis were used to characterize the material. The results indicate that this sodium titanate has a high surface area (>263 m2/g), and high ion exchange capacity for silver (30+ wt%) making it an excellent substrate for the exchange and generation of uniform, high-density silver nanoparticles. |
| Databáze: | OpenAIRE |
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