Preparation of nano-magnesium oxide in ionic liquid by microwave irradiation

Nano-MgO was prepared by microwave irradiated ionic liquid method. The influence of the volume of ionic liquid ([BMIM]Ac), microwave radiation power and microwave radiation temperature on the morphology of nano-MgO were investigated. The prepared nano-MgO was characterized by TG, XRD, EDS and SEM. The results showed that the nano-MgO prepared by this method has a short rod-like shape, uniform particle size, and good dispersibility. The average diameter of the prepared rod-shaped nano-MgO was 25 nm, the length was 67 nm, and the specific surface area was 48.27 m2/g. During the preparation process with microwave radiation, [BMIM]Ac is a good dispersant, which effectively reduces the agglomeration of nano-MgO and is easy to remove.