In the preparation of nanostructured materials, it is important to optimize synthesis parameters in order to obtain the desired material. Magnesium oxide (MgO) is a metal oxide having numerous applications in many fields especially in biomedical engineering.

This research describes the synthesis of Magnesium Oxide nanoparticles via a solution plasma, in which the effect of the electrolyte type, electrolyte concentration and voltage on the morphology and crystallite structure of the products was mainly examined.

In the experiments, a Magnesium wire as a cathode was immersed in an electrolysis solution of a K₂CO₃ and NaOH with the concentration 0.01 and 1 M  and was melted by the local-concentration of current.

The results demonstrated that change the K₂CO₃ or NaOH electrolyte concentration affect on the size of produced powder and also decreased with decreasing the concentration of the solution. The results showed that the product phases can transforme from magnesium hydroxie to magnesium oxide using NaOH as a electrolyte.