Scanning electron microscopy and transmission
electron microscopy revealed polydispersed AuNPs with the size range from 22 to 35 nm. Energy dispersive
X-ray and thin layer X-ray diffraction analysis clearly shows that SbAuNPs was pure and crystalline
in nature. As prepared gold nanoparticles was used as a catalyst for the sodium borohydride reduction of
4-nitro phenol to 4-amino phenol and methylene blue to leucomethylene blue.