The Study of Graphene Dispersion by Aid of Cationic Surfactants in Aqueous Media

Owing to its outstanding properties graphene has trapped a lot attention recent years [1]. So far a number of methods have been proposed to produce graphene and this road is still open [2-3]. Among these ways, liquid phase exfoliation (LPE) is an encouraging method to produce graphene [4]. This paper aims to scrutinize the dispersion of graphene nano sheets in aqueous media by aid of a number of conventional surfactants in liquid phase exfoliation scheme. In this study, two main features of conventional surfactants namely head group and tail group are considered as most parameters which have most impact on the dispersion process. Additionally, two different concentrations of the surfactants are tested to examine the effect of concentration. Briefly, it is beholden in our work that the concentration by which the dispersion is obtained has most impact on the efficiency of the method. UV-Vis and zeta potential analyses determine some information about the quantitative and qualitative aspects of the prepared dispersion.