Improvement of Photo-Catalytic Properties of Graphene by N-Doping

Abstract

Graphene is a two-dimensional, honeycomb-structured material consisting of a uniform monolayer of carbon atoms. Most scientists believe that graphene has revolutionary properties and research on graphene is increasing exponentially. It is considered as an alternative material that can replace silicon according to its properties, and graphene is called the supermaterial of the next century. On the other hand, some applications of graphene require the rearrangement of electronic properties. The chemical doping method is one of the most frequently used methods for this arrangement. In this study, nitrogen-doped graphene was synthesized by chemical vapor deposition (CVD) method. Urea was used as a nitrogen-doping source. Different amounts of urea were used to optimize the chemical nitrogen doping process. Raman spectroscopy was used for the characterization of the synthesized nitrogen-doped graphene. During the experiments, light (400-700 nm wavelength) was sent to the nitrogen-doped graphene surface with a solar simulator (A-type 150W, 1-3 SUN, Xenon lamp, 1.5 AM Filter). The photo-catalytic properties of the samples were measured by the potentiostatic technique.

Keywords

• Energy
• Graphene
• Lithium
• Battery