علی اکبر عموئی

This research was conducted with the aim of investigating the demulsification of water/oil emulsions through two magnetic nanodemulsifiers. Experiments were performed on graphene oxides and Carbon nanotubes. The results of the experiments regarding the effects of pH showed an increase in separation rate with increasing pH for graphene oxide and a decrease in separation rate with increasing pH for Carbon nanotubes. Also, the productivity percentage remained constant for graphene oxide, but decreased for Carbon nanotubes with increasing pH. The results of experiments related to adding salt concentration showed that the productivity percentage for graphene oxide increased with increasing salt concentration, while the productivity percentage for Carbon nanotubes decreased with increasing salt concentration. Moreover, the separation rate for graphene oxide increased with increasing concentration, while for Carbon nanotubes, it decreased with increasing salt concentration. Regarding the tests related to deionized water, it is clearly known that the efficiency percentage decreases with the increase of Carbon nanotubes. The highest productivity rate was recorded for 100 mg Carbon nanotube and the lowest productivity percentage was recorded for 350 mg Carbon nanotube. Also, the rate of separation decreases with the increase of Carbon nanotubes. A similar experiment for graphene oxides showed that as the graphene oxides increased, the productivity and separation rate increased. So that the highest percentage of productivity for graphene oxide was recorded at 350 mg. Besides, the changes of separation accelerated. In general, the results of the experiments performed for Carbon nanotubes and graphene oxides showed conflicting results regarding the efficiency percentage and separation rate.