Abstract

Mesoporous MgO with nanoparticle morphology was synthesized via ionothermal, reflux and hydrothermal methods in the presence of 1-octyl-3-methylimidazolium bromide ionic liquid (IL) at a constant temperature. The analysis of structures and textural properties were carried out in the presence and lack of the IL. The results show that the IL and the method of synthesis influence the surface area and pore size of the product. It is shown that the reflux method, as a greener route, led to the highest surface area in comparison to other methods. The micelles formed in water by an ionic liquid at 80 °C, seem to have an important role in this regard. Hence, a special method producing high surface area MgO nanostructure is introduced. This successful method for the preparation of high surface area MgO can be applied for the production of effective adsorbents and catalysts in the reactions.

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