Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5447636 | Materials Chemistry and Physics | 2018 | 8 Pages |
Abstract
In this study the influence of the concentration level of cetyl trimethyl ammonium bromide (CTAB) as the ablation environmental medium on the characteristics of graphene oxide nanosheets, produced by laser ablation method has been surveyed. The second harmonic of a Q-switched Nd:YAG laser at 532Â nm wavelength and 7 ns pulse width and 0.5Â J/cm2 fluence was used to irradiate a graphite plate in CTAB solution. The produced samples were characterized by field emission scanning electron microscopy (FE-SEM), UV-Vis-NIR absorption spectroscopy, transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), Raman and photoluminescence (PL) spectroscopy. Raman results exhibit that the 0.04Â M concentration of CTAB is the optimum concentration for producing high-quality graphene oxide nanosheets. The experimental results suggest that the amount of defects and the number of graphene oxide layers can be changed with adjusting the concentration level of CTAB in suspensions. This paper can be beneficial guidance to produce of high-quality graphene oxide nanosheets.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Elnaz Vaghri, Davoud Dorranian, Mahmood Ghoranneviss,