Multilayer Graphene Oxide-Silver Nanoparticle Nanostructure as Efficient Peroxidase Mimic

Year 2018, Volume: 46 Issue: 2, 159 - 167, 03.06.2018

Burak Derkus Pınar Acar Bozkurt

Abstract

I
n this work, platinum (Pt), titanium (Ti) and silver (Ag) doped graphene oxide (GO) nanostructures were
synthesized by using sonochemical technique, a relatively new technique in nanomaterial synthesis, and
characterized in detail. The synthesized nanomaterials were characterized utilizing transmission electron
microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). TEM images and XPS spectras showed that
the dopping process was successful. In addition, a multilayer graphene oxide-silver nanoparticles (M-GOAgNPs)
nano-structure was synthesized in this study for the first time, and it’s electrochemical performance
was compared with GO-AgNPs. As a result of electrochemical study, the rate constants of the GO-AgNPs and
M-GO-AgNPs modified electrodes were found as ksanodic= 6.62 s-1 and ksanodic= 6.78 s-1, respectively. Finally, the
M-GO-AgNPs nano-structure obtained by sonochemical technique, a green chemistry synthesis technique, has
been found to be suitable for use as an electrochemical sensor matrix.

Keywords

Graphene oxide, silver, platinum, titanium, nanoparticle, sonochemistry, green chemistry

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