Method for producing noble metal nanocomposites

Abstract

The method for producing noble metal nanocomposites involves reducing noble metal ions (Ag, Au and Pt) on graphene oxide (GO) or carbon nanotubes (CNT) by using Artocarpus integer leaves extract as a reducing agent. As synthesized MNPs/GO and MNPs/CNT composites have been characterized using X-ray diffraction (XRD), transmission electron microscope (TEM) imaging, and energy dispersive X-ray spectroscopy (EDX). The TEM images of prepared materials showed that the nanocomposites were 1-30 nm in size with spherical nanoparticles embedded on the surface of GO and CNT. This synthetic route is easy and rapid for preparing a variety of nanocomposites. The method avoids use of toxic chemicals, and the prepared nanocomposites can be used for biosensor, fuel cell, and biomedical applications.

1 - 17 . (canceled) 
     
     
         18 . A noble metal nanocomposite, comprising:
 a composite of nanoparticles of noble metal embedded in a graphene oxide, wherein the nanoparticles have a particle size between 1 nm and 30 nm and the noble metal is selected from the group consisting of platinum and gold.   
     
     
         19 . The noble metal nanocomposite according to  claim 18 , wherein the noble metal was reduced on the graphene oxide by using an extract of  Artocarpus integrifolia  leaves as a reducing agent. 
     
     
         20 . The noble metal nanocomposite according to  claim 18 , wherein the noble metal is platinum and the nanoparticles have a particle size between 1 nm and 3 nm. 
     
     
         21 . The noble metal nanocomposite according to  claim 18 , wherein the noble metal is gold and the nanoparticles have a particle size between 10 nm and 20 nm. 
     
     
         22 . The noble metal nanocomposite according to  claim 18 , wherein the nanoparticles are substantially spherical.