19-09-2013 дата публикации
Номер: US20130240439A1
A nanocomposite is disclosed comprising reduced graphene oxide (RGO) and at least one of a metal and an oxide of the metal. Also disclosed is an adsorbent comprising the nanocomposite and an adsorbent comprising the nanocomposite bound to silica by using chitosan. A filtering device comprising the nanocomposite and/or the adsorbent is also disclosed. Also disclosed are methods for producing the nanocomposites, adsorbents, and filtering devices described herein. 1. A nanocomposite comprising reduced graphene oxide (RGO) and nanoparticles of at least one of a metal and an oxide of the metal , wherein the metal comprises at least one of gold , silver , platinum , palladium , cobalt , manganese , iron , tellurium , rhodium , ruthenium , copper , iridium , molybdenum , chromium and cerium.2. The nanocomposite of claim 1 , wherein the nanoparticles have a diameter of from about 1 nm to 100 nm.3. (canceled)4. The nanocomposite of claim 1 , wherein the nanocomposite comprises at least one of: RGO-Ag claim 1 , RGO-Au claim 1 , RGO-Pt claim 1 , RGO-Pd claim 1 , RGO-Fe claim 1 , RGO-Rh claim 1 , RGO-MηO claim 1 , RGO-CoO claim 1 , RGO-Te0 claim 1 , RGO-Ce0 claim 1 , RGO-Cr0.5. The nanocomposite of claim 1 , wherein the nanoparticles are non-spherical.6. The nanocomposite of claim 1 , wherein the nanoparticles are of a tetrahedron shape claim 1 , a triangular shape claim 1 , a prismatic shape claim 1 , a rod shape claim 1 , a hexagonal shape claim 1 , a cubical shape claim 1 , a ribbon shape claim 1 , a tubular shape claim 1 , a helical shape claim 1 , a dendritic shape claim 1 , a flower shape claim 1 , a star shape claim 1 , or a combination thereof.7. The nanocomposite of claim 1 , wherein the nanocomposite is capable of adsorbing one or more heavy metals from water.8. (canceled)9. The nanocomposite of claim 1 , wherein the nanocomposite is supported on materials comprising at least one of alumina claim 1 , zeolites claim 1 , activated carbon claim 1 , cellulose fibers claim ...
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