BSc. Student Fatemeh Mousavimatin
Inspite of efficient thermal and electrical properties, the main problem with the material made of graphene is displaying poor dispersion in water. This concern made the aim of my project to work on dispersing graphene on water by creating hybrid of graphene and titanium oxcide.
In a typical experiment, the graphene oxcide (GO) were dispersed in ethanol with the aid of ultrasonication. Benzyl alcohol as a surfactant and water were then added and the solution kept stirring at 0 °C. Titanium tetraisopropoxide is dissolved in ethanol and slowly dropped into the GO suspension. After tow hours of stirring and aging for about two days,the precipitates were vacuum-filtered, washed in water and dried in air at 45 °C.