Photocatalytic activity of zeolite-supported Ag and AgFe nanoclusters

INOR 230

Robert S. Gomez, robert.gomez@umit.maine.edu, Haiyan Lu, Renante Yson, troy7777@gmail.com, and Howard H. Patterson, howardp@maine.edu. Department of Chemistry, University of Maine, 5706 Aubert Hall, Orono, ME 04469
Metal ions such as Ag+ doped in various zeolites and mesoporous structures have been shown to form discrete clusters, and these clusters have been studied extensively in an effort to determine their effectiveness as catalysts in various industrially and environmentally important reactions. Ag+ and Ag+/Fe2O3 nanoclusters are formed at the active sites of Y zeolite and sodalite by ion exchange methods. The supported nanoclusters are characterized by XRD, AAS, and solid state luminescence spectroscopy, Catalyst performance studies involving each of the synthesized catalysts are conducted using 1-naphthyl methylcarbamate as the reactant and specific wavelengths of UV light as photon sources for the experiments. The studies show catalyzed reactions have vastly improved reaction rates over the uncatalyzed reactions and vary depending on specific photon wavelength and support structure. Studies also show that the inclusion of Fe2O3 with the Ag+ nanoclusters changes the underlying reaction mechanism.
 

Inorganic Catalysts
7:00 PM-10:00 PM, Sunday, August 19, 2007 BCEC -- Exhibit Hall - B2, Poster

Division of Inorganic Chemistry

The 234th ACS National Meeting, Boston, MA, August 19-23, 2007