Nanosilver Particle Formation on a High Surface Area Titanate

作者：Shi Meng; Lin Christopher C H; Wu Lan; Holt Christopher M B; Mitlin David; Kuznicki Steven M^*

来源：Journal of Nanoscience and Nanotechnology, 2010, 10(12): 8448-8451.

DOI：10.1166/jnn.2010.3715

• Silver
• Nanosilver
• Sodium Titanate
• Titanate
• ETS-10
• Ion-Exchange

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 m(2)/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.

• 出版日期2010-12