Obtaining of Graphene Oxide by Spray-dryer Method

Abstract

Graphene and the composites and nanocomposites based on it are considered to be the most advanced materials today. Using it, it is possible not only to improve the properties of existing materials, but also to obtain completely new materials. For the last few years, work on graphene has been actively underway, resulting in improved materials, new technologies and the development of sensor technology. However, it should be noted that the synthesis of graphene with an ideal structure is a rather difficult and costly process, which is why it is being replaced by graphene oxide (GO) structures.The goal of our work was to obtain graphene oxide by the most common intercalation method, which is proposed in the literature and takes place in two stages. The next stage of the research was obtaining of graphene oxide corrugated granules by simultaneous spray-dryer method, for which Lab Granulator was used. We observed, that during the granulation process various size layers of GO arise. Size of granules ranged from ~5 nm to 500 nm. Above mentioned method gives the possibility to scalable produce defined size corrugated granules of GO. The identification and structural-morphological study of the obtained materials was carried out by XRD, SEM, UV and Raman spectral methods.